Personally I run MOTS every other day and alternate SS31 with SLUPP on the days in between. I tried NAD+ too but didn't notice much change in energy levels overall.
I'm a middle-aged guy who lifts three or four times weekly, tracks meals, rides about seventy miles on the road bike each week, and gets seven to nine thousand steps a day. I've been on reta for five weeks now and have been looking into what might pair well with it. CJC/IPA came to mind, and MOTS as well. The piece I read left MOTS out, which was unexpected. I'm after better endurance both on the bike and in the gym, and MOTS looks promising without costing too much. Curious what others have seen work for athletic output.