credentials(not much):I am by no means a career lifter. I work out maybe 4x a week and can bench about 325 weighing 165(almost twice my weight). I have never trained anyone in my life but worked closely with some trainers on my workouts..so please take my suggestion with a grain of salt
from my experience if you haven't touched weights for a while you are probably pretty flaby unless you kept up your cardio, b/c the muscle turned to fat. With your muscle memory/flab I believe you will most likely bulk up pretty quickly. Throw in some power lifts with the regular sets you are doing and see from there! Let's see some b4 and after pics.