I agree with Stikfigure, go for the higher weights, and make sure the cardio is in place. I prefer higher weights, mainly because too much repetition can cause joint problems...although I can only go as high as my weights allow...but there are ways around making them harder at the same weight at present, for me, since mine is a home workout.
I like your signature of the belt with a shoe for the clasp, and to keep track of change