i agree, the heatmakers dude didn't leave out anything that most of us don't already know. why show them digging for samples? completeness? you can't just get a good dig on cue, and plus they probably buy a lot of tracks off diggers (DITC/soulman/etc) , not that there's anything wrong with that.
and it's not like any "secret" of theirs would stay secret for long, heatmakers looks like it rolls 1000 deep, plus the engineers and other niggas who hang around. most big-time producers end up givin away tips & equipment lists in Scratch & shit anyway.
no forum beats are going to sound even remotely like dipset anthem anyway unless someone wants to pay to get everyone's tracks engineered and mastered professionally.