Right, last night whilst rooting through my 'guitar drawer' I discovered I had a .52 gague string (I usually use 10s but with a .48 on low E). So as an experiment I strung my Warpig loaded SG with a 12s set that I cobbled together from all the unused strings I've got, and tuned it down to D (DGCFAD).
Christ: the Warpigs are, almost literally, AWESOME on this lower tuning. I guess its a mixture of the heavier strings and the lower tuning, thereby brining out more of the bass response in the pigs. I was beginning to think that the pigs, although good, were perhaps lacking something ... but down tuned to D they are just the mutts.
I then dropped the low D to C.
More destruction! My setup now absolutely kills when tuned dowm to D and dropped to C. I am leaving that guitar tuned down to D, and may even get some even heavier strings to go for a C tuning. This setup, .12s tuned to D + Warpigs is like a sledgehammer beating a rythmn out ... it is just amazing.
Anyways, lesson learnt is that Warpigs are really suited to lower tunings, but IMO aren't really suited to standard E tunings ... I reckon the Miracle Man would suit the E player better.
Another upshot of all of this is that I now have to buy another guitar for normal E tuned low gain rock :) Oh well!