I paddle/yo-yo between 275 and 305 lbs- found the Megarocker to carry more weight than anything on the market and has the roomiest of all cockpits.  Staying 275 pounds or under us key to the boats out in the market now, for every pound above 275, boat performance degrades exponentially.  Don't be afraid to rip out outfitting (hip pads, seat beans, shims, trim down bulkheadsetc.) and customize as needed. 

If you are in the PA/MD/WV area, feel free to stop by and demo any of the boats I have.  I have gutted Fluid Flirts, SuperEzs and a Megarocker you can demo.  Weights are similar but my inseam is only 31inch so not much help help on length fit.  

Good luck demo'ing.   

Jason