+1 on the fiorini, I just switched back to my turbo slider, the losi clutch hit too hard with 4 maxlife shoes, gold/green springs., I'm using the losi bell, only needed 1 shim to get it right, I use 2 soft/1 hard spring, only draw back to the fiorini is expensive springs and brass washer. I use a mugen diff washer in place of the brass one, it lasts much longer.