There needs to be the selectable ability for the buffer to clear when the block is bypassed, like any other delay unit. There isn't a way to do quick on-off using long feedback tails or high feedback, you have to turn time and feedback down and let the buffer empty itself. I say selectable ability because I have found a use for the way it is now, with long feedback tape delay and analog chorus you can turn everything off, play a quiet instrumental section dry, then switch everything back on and it's still echoing out to the horizon, sounding like a fading memory of something you heard somewhere before. That's cool, but I need to be able to have the feedback on 100%, switch it on, let it run snarling toward the fence and then cut it off right before the speakers blow, then switch it on and do it again real quick, starting with an empty buffer.