New multi FX/Looper day. Picked up this Boss MS3. I had a cable leftover from using my replifex to switch channels on my JSX/XXX. It works with the MS3 as well. I can switch all 3 channels. Running a Digitech Drop and Freqout up front. Caline 10 band EQ in one of the loops. Not too difficult to program, but I haven't gotten too deep into it yet. Running it 4CM. Pretty impressed with it. Sounds great.