training work capacity/strength increasing on reta?

Has anybody noticed their work capacity increase for volume for sets or reps on low dose reta? I'm trying to figure out if its placebo or not but 3 weeks in on 1.5mg (.5mg 3x/week) and I'm finding my ability to push more volume coming almost effortlessly. I'm pretty well trained and way past those nonlinear beginner gains so this is really surprising me. I was expecting to stall or even slightly regress in exchange for better metabolic conditioning/health markers but it seems like if the pace keeps up like this I could potentially go into a nice little progressive phase here upping calories and actually gaining strength. The numbers don't lie, I'm looking at my logbook and there's been a jump in reps and an extra set here or two I absentmindedly added to my schedule! I'm figuring better metabolic conditioning and better glucose management has led to increased energy/strength? This is a freaking wonderful peptide. I may try to stay on at least .5mg/week for the foreseeable future.