Have used R & R textiles and Matworks. R & R has a really heavy grade of carpet with nice rubber backing, that doesn't need any snaps. Matworks is great since they will send you a template kit, to use to make a pattern of your floor.

ff2, they stitched in the Pantera eyes in my carpet...
nice custom touch, and i don't think they charged me.
Also, the 1st carpet they sent me, I wasn't happy w/ how it fit, with my angles foot rests, so they redid them and sent me the 2nd one for free. This is how customer service should be.
Ziemer now has my boat, you can ask him how the carpet looks after 2 seasons of use.

Yep the Snap in carpet that i got looks awesome, they couldn't do the cutout around the bolster but other than that it is way better then the original.