bump???? amp used is a modded 5150, vader cab or similar .......miracle man sounds pretty intense but 2-D sounding if you know what i mean :S
Actually I don't know what you mean by this, my MM sounded very full and 3D in my ibanez in Drop A through a 5150.
Now I use a black dog in a baritone (also in Drop A), also through the 5150, and I absolutely love it.
Given that you already have the pickups lying around - swap them out and see how it works out! Doesn't take much soldering :) I would definitely try the C-Pig in there for curiosity's sake, also the Painkiller is exceptionally tight and could sound great there. Also the Cold Sweat, marginally lower output than the others, might give you surprisingly good results. I would also want to try a much lower output pickup in the same guitar to test, too ;)
In short - if you can, then do it!
Roo
PS be sure to report back here with your findings!