Here's a link to a CG report on the use and safety of sponsons. (Something i'd never heard of until reading this)
http://www.uscgboating.org/SAFETY/efficacy.htm
Any thoughts on a Necky Chatham 17? I've seen one on Craigslist for $1280 including composite paddle, skirt and a few extras. I'm 6'2" 250. The reviews I've read are very positive and sounds like the size would work for me.
Thanks - John