Well I got the delay on my amp to sound exactly like feedback. I turned the delay rate to zero
and the feedback to maximum. However, it was much louder than regular feedback and much harder to control, actually it was pretty much impossible to control. It also wasn't the cool extreme chaos kinda feedback, it was just the high pitched screechy kinda feedback. So while I got a feedback sound it wasn't exactly what I was looking for. It was kinda cool with the feedback knob turned back a bit and without distortion. However, I'm reluctant to try it again with distortion. Even for a feedback nut like myself (think Hendrix's Star Spangled Banner) it was pretty painful to listen to once the distortion was kicked on. However, I guess it might sound okay with the feedback control backed off quite a bit (but I'm probably not gonna mess with it soon). Also when I tried to edit the parameters I accidentally switched over to my wah and was editing that and pretty much ruined it. So now I have to go return my amp to the factory presets and rewrite my channels and stuff because my wah was the preset settings. Overall, it was a pretty lame experience for me but feel free to fiddle with your delays, just don't crank the feedback. Post your results here. 🤮