I think the intent was getting some greater feeling of reliability rather than hunting big HP - thats the way i read it anyway.

Out of curiosity, would it be at all possible to install stud bolts one at a time without taking the head off? ie take out a head bolt, screw and torque a stud bolt into the block and then torque the nut down, move onto the next sequential bolt? Might be unconventional, just wondering if there would be any noticeable issue doing this - ie saving the head removal process? Engine builders, what do you think, regardless of convention?