yikes. it must suck to be competitive because those are some fast times to hang with.
Just throwing ideas out but one thing I'm going to try at some point is just taking the hardest part of the movement and drill the hell out of it in a density format.
So, if you are good at loading but suck at the pick on stones, try setting up in a just pick it and raise up but don't worry about loading...max number of attempts in like 10 minutes.
or like with farmers, just work getting the absoute heaviest farmer you can and sprint it even if you only make it a couple meters, set up to do like 5 attemps in 5 min. or 8 attemps in 10 or something. for whatever reason I seem to get my head properly squared away with the help of a running clock. What do you think?