I can agree with MindLLex. I find that using my g502 (or even the g402) that 500hz feels sluggish in fast motion games (I don't count CS:GO/CS:S as fast motion) as you have to react/track even the smallest of movements. I feel that 1000hz is harder to control, but it depends on how I'm doing that day. If I'm doing terrible, 1000hz will exacerbate the issue. If I'm doing great though, I'll be able to take advantage of 1000hz and perform some crazy feets.
Another thing I've noted is that playing with 1-max prerendered resulted in worse aim than 2-max prerendered, however this might simply be because I'm on AMD which I read does a worse job at 1-max prerendered.