I never told him to run it at 5.5V I said I run mine at 5.5V! Plus 5.5V isnt much for a 3.2ohm coil! Remember, the power going to that carto isnt the same as if it were going to a 1.5/1.6 ohm carto/atty.
That being said, taste is very subjective. He asked a question if that mod is good for dual coil cartos, and I had to give him the correct answer. And the correct answer is, it wont be able to run them at full voltage! It needs a 6A regulator to do that and survive!
Caveman, just send smoktek a e-mail and ask him if he can sell you one built with a 6A regulator instead. There shouldn't be that much of a difference. Hell Ill even send you a free 6A regulator to send him so he doesn't charge you extra for it.