I'm buying new drive and accessory belts for my supercharger setup. I'm wondering what brand is the best for preventing slip, decreasing slip, high strength, longevity, etc?

Popular brands that I am considering are Bando, Goodyear Gatorback, Gates

I'm leaning toward Bando, but tech is recommending Goodyear Gatorback to prevent slip. There does seem to be a difference b/w the 2 brands in how the belt sits. The Bando has consistent sold grooves, while Goodyear Gatorback grooves are of variable lengths that are split apart.

I was trying to find Kevlar belts (Power Enterprise, Gates Racing), but could not find all the sizes needed for my setup (4pk860, 6pk1735, 7pk1060). Bando, Goodyear, and Gates makes belts for 4pk860 and 6pk1735, but so far I cannot find a 7pk1060 belt. Mitsuboshi makes it, but I cannot find a local seller for that.

I'm not considering Dayco, because I've read they are generic crap.

Anyways, what brand of belt do you like/think is the best?

 

whatever came factory on our cars thats what i'm gonna replace it with