i read through a good portion of the answers here and i didnt see any refference to the 2 bands that got me into 7s. Lord Belial (swedish black metal with lots of death influence) and Emperor (well at least the Prometheus album) i was hearing standard range chords and leads, and then hearing these really low heavy rhythms and was just like "Wtf?! he was just playing a 24th fret high E now they are tuned down to Bolt Thrower and At The Gates range!" and a small search on the interweb led me to seeing that they were using those "silly nu metal guitars" and made me realize there are other possibilities with them. i got a cheap one for a while and got rid of it quick, then i started listening to alot of Meshuggah and Novembre (if you like Opeth, this is a more melodic italian version, with 7s) and that refueled it.still with out one, but im making a down payment on a Sherman weds.
when i had one i tuned standard, Bb, and A.
when i had one i tuned standard, Bb, and A.