I plan on using the DICE pots on s775 extensively, before i even conteplate putting it on my Classy, which is my main rig. I have 3 nice s775 boards to use first: DFI LP UT P35 T2R, Gigabyte GA-EP45-UD3P, and an EVGA 750i FTW. Oh, and my chips: q9300, e7400, e1500, pd 915, p4 660. Right now i am trying to work on the e7400, which is in the EP45 currently. So far, it seems to be a bit of a volt-whore; 1.5v @ 4.2 and it bsods at the Windows loading screen. 1.45v @ 4.0 and it is stable just long enough to get in a SuperPi 1m and WPrime 32m test. Keep tweaking it seems...
Also, i wouldn't/don't plan on using the nb DICE pot on my Classy, even if i put my 920 under...