CVT drive belts and snatch blocks

[toonces]

New to ATVing here and just got a '11 Grizz with the belt drive transmission and I've been suggested to take along an extra CVT belt along in remote rides just in case. I'm somewhat knowledgeable about where to get quality parts for cars but not so much for ATVs. Who makes the best CVT belt for my bike? Also, who makes just ok belts and who should I stay away from?

Also, I'm looking at getting a snatch block for a synthetic rope winch and wondered if the type rope determines what type of block you should get...or are all snatch blocks the same and I'm just thinking about this one too much?

Thanks