Having tried neg-acc reps (described in “The new HIT”, neg w one limb at a time, pos with both limbs, 8-10 sec for at least 6 reps) in the leg press periodically, I realized how effective this method is in building quads (and glutes), in analogy to the negative chinup and negative dip. I lately successfully used it to overcome pain in my right patellar tendon (most likely as a result of too quick progression in terms of loading - proving HIT really works).
I am thinking of applying the same method to other machine excercises featuring arms/legs. Primarily leg curl, leg extension and bicepcurl machine. Maybe also on bench press and shoulder press, if the machines can tolerate the uneven force it generates? This in order to create a special routine to use (for a maximum of two weeks) whenever a threshold in development occurs.
Do you have any thoughts or recommendations in this regard (before I proceed)?