Feedback has been slow on tropinol on the boards. Personally, I feel like with all the new products i-force exploded onto the scene with, Tropinol just got left out by accident; although feedback has always been great.
IMO, with the addition of Alcar in the upgraded testabolan v.2, I find that far superior and would be my personal, first choice. Have you considered intimidate as well? That has gotten tremendous feedback, especially when stacked with either reversitol v.2 or testabolan v.2.
Mike