Yes, I've read that too but I spoke with a guy who owned it and he said that he had not noticed any latency with preset switching. I'd like to see it by myself. Neither my E520 or E920 has a MIDI. I use an external unit for it. However programming of any ENGL is very simple - choose a button, set up the channel, confirm with WRITE, choose A or B set on the poweramp, confirm with WRITE and you're good to go. It works like that with an external unit (non-ENGL), Savage SE using Z7 MIDI interface and also with Invader that has built-in MIDI.