Trenazone is good stacker for me, it didn't do much at 8squirts for me until week 3, However at 10-12spuirts I noticed a significant increase in strength and endurance sooner, I didn't notice any other significant side effects. UD is the most performance enhancing supplement I have ever taken, extremely clean and alive feeling. That is out of H-drol, D-plex, Alpha-1, protomax, M-LMG, SD and Trenazone. Nothing has made or given me more endurance, strength, power, libido or mental clarity/capacity/focus. At the dose: 3/3/4/2, I didn't gain any mass. Some weight gain and fat loss but no measurable size, unlike my previous cycles of H-drol, Alpha1 and SD in which I gained 1/2" arm size and 20lb (same diet /training regimen). The only side effects of UD for me were: The worse backpumps ever, not common, but the most painful. Liver pain if missed a liver support/UDCA dose and gyno flare at the end of SERM pct. I think doing a 5 week SERM regimen would have prevented the gyno flare.