The large flirt is a really big boat, you need to be pretty tall to take advantage. It has a really deep cockpit, I am 6'4" 36 inseam and have an inch of foam on the seat. I am 200 lbs and feel too light for it as a playboat.
Really good river runner, I love the volume in the stern. The extra stern and high sidewalls do make it harder to roll. It is about the only boat I haven't been able to hand roll consistently.
Don't want to sound too negative, as I like everything else about it, rocker, edge, speed, etc. and will probably keep it for a long time.