I am going to try something different, but that's because I need to build up my endurance. I've been doing the right things for my chest and arms so now I can do pushups for quite a while--which helps when I lead three classes (in each, we do pushups as part of the warmup).
My legs need endurance. I have to redo my workout. Lower the weights a bit, hold it in the contracted part for longer and release for longer--less rest time.
This stems from a couple of forms in kung fu. My cardio finally lasted, but my legs gave out. That was aggrevating.
I have to admit, though, hanging freely from the chin bar for a bit before my reps, I was able to pull off more chinups. Maybe I'll try hanging with weight, then drop the weight to pull reps.
Surrender yourself to nature and be all that you are.