I feel like the tbol was definitely a strength and pump boost. I should add that when I ran it I was also running tren and mast, at decent doses. So the combo to this day remains the best combo and most fun 6 weeks of a cycle I've ever had. But there was a noticeable drop off in the gym when the tbol ended. Can't say how the tbol did in terms of body comp, the combo was great and entire cycle in general. Great performance enhancer, could imagine at 60-80!!