Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: which side is up on this mount?
Document: Sure, you can slide the tv arm bars on the tv plate, but that causes lopsided weight distribution, which then causes the tv plate to not be level. A few observations on installing this plate:1) Even with the 27.5&#34; plate, I find that I cannot perfectly center the mount on my wall. I have to offset it and slide the tv to one side.
Installation was easy. Very sturdy product. The only negative thing is that when trying to tilt my tv in a downward motion it is VERY stiff.Tilting up is easy, side to side and in and out works fine. From reading the reviews, i see that i'm not the only one to have the stiff tilting problem. Don't really need to tilt my tv frequently, so i dont think it will be a big problem.
Does what it is meant to, easy assembly, assembles like a wall mount. I have put up quite a few and this one was in between difficulty.
works great. installed easy. no complaints. love it. wow, what a mount. can't be any better. thanks for making such a great product.
The mount works well, but you better know what to do without instruction. The installation instructions are lame and unclear, not to mention the very small print.
When buying a tv mount, purchase one that will cover a larger variety of bolt patterns so it could be used on future tv purchases.
The mount is well made and decently priced! Easy to put together and mount, all u need is a couple basic tools and a stud!
Great product tv is still on the wall holding strong i did pull ups on the mount i weigh 140 lbs and held strong
Great strong and easy AAA ...........built in level genius. Make sure you hit stud for heavy set And enjoy your great mount
Why. The tilt opening in the mount is square and meant to have a square neck bolt, but that was not included. Real instructions, better/proper packaging would have really helped in installing this.
Answer: It doesn't really matter.  Both sides are symmetrical except for the built-in bubble level.  If you must have an answer, I installed mine with that on top.