How many pitch shift blocks can The AX FX 3 run on one preset. people on facebook say only two. they say its not like the helix where you can add whatever blocks you want until you run out of DSP. I found this shocking as the Helix does not work for me ether. Not for this anyway? what is the true limitation? how many pitch shift blocks can one preset hold. thanks? how about with the AX FX ultra, can that one do any more? Thanks for the info guys. I know the AX FX is probably the best multi effects processor if there is a best, I just want to know how many pitch shift blocks it can run on one preset.