I am 6.2' and 210lbs. I fit well into the JS3 (well enough for 8hr flights without fatigue), even better in the LS8 and not at all in the V3 with the small fuselage.
The myth about the JS3 being too heavy to climb, is just that, and if it comes to the run, I would rather be in a JS3 if I wanted to get home first