Got the 25 lber now and am debating as to how to go about training with it. Using 2 hands I can do almost all of the ABC exercises rather comfortably. One handed I can do front swings, front CTO's, and full choke armpit casts with good form. I was able to do some mills and full swipes but I don't think my form is up to par just yet so I'm gonna wait before I tackle those.
Ideally, I'd like to work up to being able to do more one handed work with the 25 but I do enjoy ABC's as well.
My concern is that too much time spent doing two handed work will have adverse effects on my abilities to do one handed work with the same club.