What youre describing will work. I used to train for a pump and thats all I did. Get as much blood into the muscle as fast as I could. Its very painful. It does work though. But, eventually, at least from my experience it will only work for so long just like anything else.
I cycle my training methods. I dont have a set amount of weeks i do anything for, i go by feel. Once I feel what Im doing isnt as effective as it once was i stop it and change what im doing. I usually rotate between 10-12 for a number of week and 6-8 for a number of weeks. There are exceptions for certain exercises though. Take cable flys for example....Im never going to do 6-8 reps on cable flys. But if Im in the 6-8 rep stage im most likely not going to be doing cable flys anyways. The weeks where i train heavier with 6-8 reps is more free weight compound movement with some machines. And pump weeks 10-12 reps tend to me more machines and cables with compound stuff near the end of the session with some rest pause sets and whatnot. My trainings really a shit show and it happens on the fly LOL but it works.
The main thing is, EVERYTHING works, but not forever. Once it stops working do something else brother.
