6.0 trucks are indeed triple disk from the factory. The 7.3's originally were single disk. The more clutches in the converter are just like in the auto transmissions they are supplying the power too. More clutches=more holding power. The guts inside can mechanically help with quicker/harder lockup (in principle like a mod'd VB in a 4R100), but generally that is done through the TCC solenoid by making them larger inside for more flow. Also tuning controls line pressure, which in turn can make the lockup soft/harsh.
FWIW, I carry DPC converters. And for those that are not familiar with Phil the owner, he was the guru at Precision for quite awhile until about 6yrs ago, and then he jumped ship when quality was going down hill and started his own shop. I do believe P.I. has since improved from what I hear/read from around the watering hole.
