KerchEven though the sensor does have some acceleration, it's very small compared to the tracking problems you get using it on a cloth pad.
Try a hard pad and you may find you no longer perceive any accel, although you can't get rid of it completely.
I actually own a g500 and also happen to use a cloth pad. I'm used to it though.
I would like to let everyone know, however, that I've found a couple of things that seem to mitigate the "weird" tracking feeling.
I used to swear by 800 dpi. I think that this if from when I used an optical sensor. I have this [perhaps anecdotal] feeling that optical sensors work better at low dpi than laser sensors. A while back I switched to 1600 (keep my sens the same by cutting my in-game sens in half) and it feels much, much better.
But what I've found helps even more, is using a polling rate of 333hz.
I swear it's not a placebo. 1000hz, for me, just feels waaaay to weird, and like there is some weird ass accel going on. 500hz for me is tolerable, but, when switching to 333hz, tracking feels damn near perfect.
I know that a high polling rate like 1000hz uses cpu processing, so perhaps my personal hardware affects my ability to use 1000hz. Either way, if you use this mouse, and you use a cloth pad, I highly recommend trying a polling rate of 333hz. Even if you don't think you have a problem with this mouse and/or a cloth pad, I'd like you to try this anyway and see if you notice a difference, just for my own curiosity.