Well I've received the one spot and the problems still there! Really bad earth hum. Strangely through my bass trainer and headphones it's noisy through the pedal board (with a P bass) but quiet plugged direct. when I put the pedal board through my amp it's noisy but not as bad, however when I plug directly into my amp, I get massive earth hum. I tried all of my basses the P bass was worst but the jazz hummed too,but my musicman was quiet. Once again not as bad through the pedal board. I plugged into a different wall socket with same noise. I'm wondering if my power is dodgy. I have the same issue in a dodgy lockup I rehearse in and I know the power is dodgy in there.
I still don't think it's my cables as the problem exists using the one spot on single pedals. Any other thoughts gents?