The Decibel 11 units are awkward under a pedaltrain as well. Fitting 4 of them under my PT-Pro took a lot of imagination. I am hoping I can reduce that amount with the ISO Bricks. But, realistically, I think I may just replace 1 Decibel 11 unit with 1 ISO Brick. Unless doing 3 ISO Bricks lets me remove 4 Decibel 11s or something.
My Decibel11 fits my PedalTrain like a glove...but I just have the one. Can't imagine trying to fit 4 of any power supply