When i think of it this is very mainstream.
Reading maxim is when i first got bit by the muscle bug. They had this pullout thing tro get bigger arms At the time I was in serious need of bigger arms (still am but not as bad
). and used it! I think it was 3 sets of concentraion 3 sets of standing dumbell curls and 3 sets of barbell curls. This is what got me started in bodybuilding, so I'd say this is very good for Jay.