Yeah, I have quite a collection of sticks now... 1x 32GB, 5x 16GB, and an 8GB.
Funny thing is almost all of them are Sandisk Cruzers, and all but this one passed the speed tests. I *did* have to format a few of the 16s a couple of times to get the to pass, but when the 32 got "below" for a third time in a row, I said screw it and just started moving stuff onto it.
As it's only for storing a few Games on Demand, I don't mind if the speeds are a little slow as it'll get used very rarely and ANYTHING being played will be from the HDD and nothing else.
...I just wanted to make sure that I wasn't risking data corruption more than anything else. My 8GB is a speed demon and will be where anything truly important goes, anyways ^_^