Hi, i will do HST for the first time. I already figured out the RM's, and now i'm in SD. Question: I do manual work, and trained upper body already with split training, so my wrists and tendons should be fit. As i trained before some muscles with split training, do i have to do the first 15 rep. Block? Or can i start with the 10 rep. Block? Somewhere i read, that the 15 rep. Block is optional in the 2nd cycle, and only recommended if you have problems with tendons and wrists. So is it also optional in the first cycle if quite fit? Thanks.