Heaviest is a 15"er that was at 2lbs
16" I guestimate around 2lbs
16" that was paper thin and weighed 1lb 10oz.
I have caught many 15inchers but just one that weighed 2lbs, and 2 16"ers, one with was thin
All above mentioned fish were Lake Norman. Largest Ive seen from Lake Norman was an 18" that weighed 3.25lbs