You will need to find a suitable server and a good big file. Make sure you have All selected in the Export range box. K automatically adjusts the setting, if you don't specify something. So while this tweak will not hurt anything, it will disable this automatic adaption to the line latency. If the speed is the same, then don't worry.
Nothing is broken.
If the speed is lower now, then you should consider undoing the tweaks by importing the backup copy made during step 3. This will however, most likely not be the case. Note that you should try to do the test under similar load conditions, i.e. same time of the day etc. If you are a total speed freak, you should check this out. Get a Palm Vx .