Sam Mcdowell :
The mouse mat i have is the steelseries QCK which is a cloth mouse mat, although the mouse i want to buy, the corsair vengeance m65, is a laser mouse and ive heard that a laser mouse on cloth tends to result in jitter and things of that sort.
Anyone know if this will give any problems?
It all depends on how your mouse is reacting on softer pads with your settings. I've had seen the mouse go unpredictably crazy on softer, super smooth pads when I turned on the mouseaccel feature, and working normally without it, and when experimenting with sensitivity, sometimes even optical mice go wrong on smoother surface pads for me. As for laser sensors, in general, they tend to react better with hard mouse pads. For example, while testing SteelSeries Sensei, I found it to work best on SteelSeries HD, which is hard plastic textured pad, and for optical mice I sticked with Razer Goliathus Control, which is cloth pad, but with a rougher microtexture. Is ok for laser too, but I wouldn't use it on smoother Speed version.. So, basically, yes, it can get you in all that jittering issue. Here, in description of this video somewhere in the end was good info from Razer about laser and optical sensors and how they work on different surfaces:
https://www.youtube.com/watch?v=Fnzbi9yToHE
But anyway... man, you really want a laser mouse? If you're planning on FPS, think twice before you take it, any good optical will beat it in the end.