Regarding the fx loop, I briefly owned a PPIMV plexi circuit that had a Metro loop and delays sounded really strange. Almost like it was placed in front of the amp where the initial repeat was real loud and subsequent repeats got cleaner. Of course, you can somewhat adjust for this but only to a certain point. Is this inherent with this type of circuit and would the loop in this amp behave similarly?
Out standing tone playing your videos are incredible and I read a negative comment on and amp that you are selling they said you are asking too much money for it. You've earned the right to ask good money for your amps because they sound incredible and congratulations!!