Jake, I am only 175lbs and 6'3", and paddling the 90. Not sure what your skill level is, but I find the 90 to be a super responsive boat, even with being at the low end of the weight range. Keep in mind to that you will be adding weight to your creek boat with a breakdown paddle, first aid kit and un-pin kit as well.
Also manufacturer specs are just their recommendations, I read a review of a woman (140lbs-ish) paddling the 90, https://www.facebook.com/notes/liqui...50461627355992
Get out to the local shop and sit in both, then if you fit in both try and demo each one on a familiar run, only then can you make a really good decision on which one is the best for you.