I like the S6F193. Im 511/ 210#/ 32/10.5, so a little less leg to cram in there, but in all I have been very impressed with the boat. I paddled the Kingpin Icon 6.3 down Westwater last weekend, but had a chance to try out the F193 at Little D. That boat floats me significantly higher than the 6.3, and sits me higher than my Airhead in a bow/stern stall. The boat is extremely well balanced & moved around the water with lots of energy. I would have been happy to switch boats with the guy that let me try the F for the rest of the day, but he didnt want to give it up.
I have always liked the S6, but was disappointed with the S6X last year. I cant put my finger on it, but the hull just didnt jive with me. I think I have this straight when I say that, simply speaking, the S6F is the S6X top on the S6 hull. Thats what I have heard & that is what it feels like. You obviously dont have the length of the S6, but it seemed faster than the 6.3 & had all of the bennies of my Airhead without the boxy ends. My $0.02.
Try not. Do, or do not. There is no try.