Preacher wrote on May 8^th, 2012 at 5:19pm:

I'll size-up if I want to exclude smaller fish.

I agree. Some of the best large walleye and pike fishing I've found occurs in areas that also contain lots of hand sized small mouth bass. At times it's impossible to keep them off of a smaller trolled bait. Sizing up prevents them from getting hooked but they still try and you can feel them nip at the larger lures.