I played a MM / bots / FF in NCSOFT days, and I'm doing it again. Once I get bot accuracy to 33% I just worry about damage. The force fields do a good job of protecting the bots and keeping mobs off them (and me). Plus I can heal the bots when one of the Protectors is busy healing a different one.
Looking forward to getting all the way up the FF tree, to be able to put a wall up again. Used it a lot back in the day to hold choke points on Task Force events and trials.
I guess back then I was into theorycrafting but this time around I'm just having fun and not worrying about it.