The power tap hubs make for more dish in the wheel and lower NDS tension. I rebuilt a wheel for a friend a few times with a power tap hub. He bought the wheel from Performance and cracked the rim. I had an Open Pro in my bike room so I rebuilt the wheel using my rim while he sent the broken to Per. for replacement. He broke the second. so I built it up with a Sun CR18. He began breaking NDS nipples so I added tension to the drive side to be able to get decent tension on the NDS. That solved the problem.
He is a big man (over 220) and strong as an ox so he needs a strong wheel.