I've always loved my G502's shape but I hated the weight.  I ended up switching to a similarly modded wheel mouse optical (weighing 62g).  So I decided to cut out (literally) all the G502's features I don't use in order to achieve a lighter mouse.<br><br>

Here's a time lapse of what I did: <b><span style="text-decoration:underline;"><a class="bbcode_url" href="https://www.youtube.com/watch?v=KAY85p1r9c8" target="_blank">https://www.youtube.com/watch?v=KAY85p1r9c8</a></span></b><br><br>

I started out disassembling the mouse completely.  This is an impressive mouse.  Very little wasted space.  Everything seems very strategically placed.<br><br>

Something Logitech did that I hope more companies start doing is having a teflon piece where the mouse button contacts the micro switch:<br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773806/"><img alt="" class="lightbox-enabled" data-id="2773806" data-type="61" src="http://www.overclock.net/content/type/61/id/2773806/width/350/height/700/flags/LL" style="; width: 350px; height: 300px"></a><br><br>

So I started out knowing the scroll wheel would have to go.  I had already been using a G500/G700 scroll wheel.  G502 wheel is 13g, G500 wheel is 11g. Cheap OEM wheels (which I have a ton of) are just 1 gram.  Couple that with a blue rubber ring from another cheap mouse and we go from 13g to 2g.<br><br>

I also removed all components dealing with the infinite scroll feature (since I can't do it anyway with this wheel).<br>

Luckily I have a TON of mice.  So I popped out a scroll wheel from a basic OEM mouse as well as a blue rubber ring from a cheap $2 ebay mouse.<br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773807/"><img alt="" class="lightbox-enabled" data-id="2773807" data-type="61" src="http://www.overclock.net/content/type/61/id/2773807/width/350/height/700/flags/LL" style="; width: 350px; height: 622px"></a><br><br>

The OEM mouse wheel needed a lot of grinding to fit the G502's plastic housing.  OEM wheel was too wide, too large of a diameter, axels didn't fit the pin holes, and I needed to shape it such that the blue rubber ring would fit around it.<br><br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773808/"><img alt="" class="lightbox-enabled" data-id="2773808" data-type="61" src="http://www.overclock.net/content/type/61/id/2773808/width/350/height/700/flags/LL" style="; width: 350px; height: 197px"></a><br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773809/"><img alt="" class="lightbox-enabled" data-id="2773809" data-type="61" src="http://www.overclock.net/content/type/61/id/2773809/width/350/height/700/flags/LL" style="; width: 350px; height: 197px"></a><br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773810/"><img alt="" class="lightbox-enabled" data-id="2773810" data-type="61" src="http://www.overclock.net/content/type/61/id/2773810/width/350/height/700/flags/LL" style="; width: 350px; height: 197px"></a><br>

Scrolls fairly well.  Feels far from perfect but I don't use the scroll wheel much in games.  I think my axel is slightly off center because each revolution has 1 spot that's slightly harder to turn.<br><br>

Next I took a dremel to the weight compartment.  I cut out a chunk from the mouse body.  It's still very structurally sound.<br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773811/"><img alt="" class="lightbox-enabled" data-id="2773811" data-type="61" src="http://www.overclock.net/content/type/61/id/2773811/width/350/height/700/flags/LL" style="; width: 350px; height: 197px"></a><br><br>

Then I cut off most of the door flap on the bottom that goes over the weights.  Since the right side of the plate has a teflon foot I decided to keep that<br><br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773812/"><img alt="" class="lightbox-enabled" data-id="2773812" data-type="61" src="http://www.overclock.net/content/type/61/id/2773812/width/350/height/700/flags/LL" style="; width: 350px; height: 622px"></a><br>

This door in held in place by two magnets (one on door, one on mouse body).  Combined the magnets are only a couple grams but there's no use in having them since I won't be opening/closing the door.  Super glue is now holding that right side teflon foot to the mouse body.<br><br>

I also removed the rear palm rest plate.  It's only 5 grams but the mouse isn't uncomfortable without it.<br>

Other parts removed include the two LED light deflectors (one white for the G logo, one gray for the 3 DPI level indicators).  I don't care about lights and I only play at 800 dpi.  If I ever need to change DPI it only takes a few seconds within the gaming software.  With this light gone I also removed the G9 button which I had never used anyway.<br><br>

I also make my own mouse feet using pure PTFE from ebay.  I smoothed the edges of the feet using a dremel with a wire brush.<br>

I'm a little disappointed with how the feet came out.  If I switch to this mouse from my current MX510 then hyperglides will be worth investing in.<br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773813/"><img alt="" class="lightbox-enabled" data-id="2773813" data-type="61" src="http://www.overclock.net/content/type/61/id/2773813/width/350/height/700/flags/LL" style="; width: 350px; height: 622px"></a><br><br>

End result:<br>

Logitech's website: 168g w/ cord, 121g w/o.  37g removed = 84g!<br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773814/"><img alt="" class="lightbox-enabled" data-id="2773814" data-type="61" src="http://www.overclock.net/content/type/61/id/2773814/width/350/height/700/flags/LL" style="; width: 350px; height: 622px"></a><br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773816/"><img alt="" class="lightbox-enabled" data-id="2773816" data-type="61" src="http://www.overclock.net/content/type/61/id/2773816/width/350/height/700/flags/LL" style="; width: 350px; height: 622px"></a><br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773815/"><img alt="" class="lightbox-enabled" data-id="2773815" data-type="61" src="http://www.overclock.net/content/type/61/id/2773815/width/350/height/700/flags/LL" style="; width: 350px; height: 197px"></a><br><br>

With palm plate on:<br><a class="H-lightbox-open" href="http://www.overclock.net/content/type/61/id/2773817/"><img alt="" class="lightbox-enabled" data-id="2773817" data-type="61" src="http://www.overclock.net/content/type/61/id/2773817/width/350/height/700/flags/LL" style="; width: 350px; height: 622px"></a><br><br>

Pic of everything that was removed:<br><img alt="ewx3a5z.png" class="bbcode_img" src="http://i.imgur.com/ewx3a5z.png">