Hi all, I recently got a shock off the strings on my american deluxe jazz bass. I was playing and was fine, then a sudden sharp shock and then was fine then for the rest of the rehearsal. The amp I used was my LMII which is brand new, therefore nothing should be wrong with it, tried other basses and its been fine, tried the amp and jazz bass at home and it was fine. Only thing I can think of is that it's dodgy wiring at the church building, as the casing on my previous amp went live a couple of weeks ago so I changed to the Markbass. I used my socket tester which said the power was fine and there was no earth fault.