Thanks Roboten, I just logged in to say that I have solved the issue and it was exactly the same problem as yours, the neck pot red and black shorting due to contact with shielding paint in the very tight cavity. This explains why it worked fine with the pots hanging out and then as soon as I tightened everything up I lost power! After I worked out that it was the shielding paint causing the issue I rotated the pot half a turn, tightened everything up and it was fine. Lucky for me as none of the multimeters I got from the local Mitre 10 were any good, so I was unable to diagnose it with a continuity check (I got my money back on those).
First impression: no usable clean (everyone says this about Warpigs, but the contrast with the Cold Sweat neck and even the Nailbomb bridge in my SG was quite stark), much more bassy sound than the NB but not overly dark or bassy. In terms of sheer output it seems less than the Mighty Mites but with more dynamics. The Mighty Mite has a LOT of compression, which is one reason why they sound so loud. I will have to adjust my playing style on this axe to suit and after I am used to it I will say a bit more. I also need to experiment with my amp EQ.
I also bought some extra leads for my effects loop on the Peavey so now I can run the ISP Decimator G String II, which works how that it has all four leads plugged in.
EDIT: No real joy with the ISP (see thread in amps, effects, etc) but here's a photo of the guitar with Warpigs fitted.
