So, is the ping-pong delay a dual mono effect?Using this logic any stereo effect placed before a ping pong delay set at full wet would sum to mono, Yet this is not the case,only the reverbs do this... Frankly I don't understand his aurgument at all. I have an eventide H9 (Not dual mono) when I run direct out of Helix stereo L/R using a Ping pong delay into the stereo inputs of the H9 set to a reverb algorithm full wet, I still clearly and fully and hear with crystal clarity the back and forth delay.