Man my DS3R is about to go find the UPS truck and get the processor it self. It's just sitting there begging to get thrown in my Stacker 832 and get the E6750 and tuniq 120 ontop of it.
It's probably so that, the newbie overclocker, won't get confused and starts messing around with them. More like an advanced setting, for more experienced overclockers.
ram timings aren't dangerous as more as they would be like WTF MATE for a newbie overclocker.
As for the multi error...i'm not so sure. I remember hearing of this I think but I never had the problem myself. I would google it or search overclock.net forums