The title says it all. I have 30 inch Blackwater Evo’s. I trail ride and drag race my buddies.

Does one of them have better trail manners or rock crawling abilities?
Is one of those clutches faster than the other all things being equal?
Is one easier to adjust or tune?
Is one quieter than the other?
Is one more reliable than the other?

Lots of questions but I would like the fastest, most reliable and simplest to tune or adjust, with the best trail manners.