I am running a Silver Sport/Keisler hydraulic TO bearing setup on a 496 with 5 speed. It has performed well for ~15 years. I have an early version that takes some patience to bleed other than that no issues including X country and road track.
Pretty much the same here, Keisler/SST 5spd TKO600/650 w CF synchros along with their hyd TOB and Wilwood modified master, I run a Sach BorgBeck/3 finger pressure plate in the 2800 lb range with a Sachs single Kevlar disc, pretty much beat the sh1t out of it on the street/track or courses with zero issues, 440/6 up front
