First observation: Epistane seems to speed recovery between workouts dramatically.As hard as I've been pushing the last couple workouts, I should be pretty beat up.All lifts are rapidly going up.Now I think this may be due in large part to muscle memory, but I cant help but think that the epi is "jogging" that memory.I'm also thrilled that my radial tendons arent screaming at me when I go to grab the gallon of milk out of the fridge after a heavy upper body session.Of note as well: I had an acl/mcl surgery on my right knee 2 years ago.Until 2 days ago the damn thing would click, pop, and crack (and I mean audibly) whenever I would squat below parallel.And there would be a residual dull ache that would require 3 advil to relieve.As of this writing I cant even tell that there was ever a problem with my knee.Does correllation show causation? Not late enough in the cycle yet to make that determination, but I'd say that the stuff was worth the price if it gets rid of that ball and chain.I'm definitely starting to feel this in a very positive way.