I'm only 6' 1" and 200 lbs. and there's no way I could come close to getting comfortable on my RS. Tried an RT, a year ago, and was surprised that it wasn't much better! My inseam is 33". Not at all unusual for an Ape, but, still, my wife thinks I'm human, and CanAm dealers tell me I should fit on a Spyder.:roflblack: Still, I couldn't get comfortable, and a check of all available floor-boards showed that non of them would move my feet far enough forward. Sooooo, I built my own. Got my feet down about 3.5 inches lower than the RS pegs, and about 18 inches farther forward. Reversed, and doubled the length of the shifter, made a jointed rod extension arrangement for the brake pedal, and moved the oil tank out about 1.5 inches on a new mount. All this neccessitated making some new fiberglass bodywork, which is still a work in progress. I installed 4.5" risers to the bars, too. Oh, and mirror extensions.
The results? I now have a Spyder that I can ride.

At 73 years old, age has to be counted as a factor. A younger man might find it easier to ride long-distance with his knees up under his chin, but this Old Fart kept getting cramps in the front of his hips, numb feet and butt, within 18-20 miles from home, with the original riding position. Got Air Hawk cuishions. Didn't help. Tried a full long-wool sheepskin. Didn't help. Tried them both together! Didn't help. I'm convinced that CanAm hired a little 80 lb. Japanese girl to model for there seats on the RS, and her 90 lb. mother to model for the RT!
Don't know if BRP has made further improvements to the RT over the last year, but, if not, then I know that I couldn't ride comfortably on one if I had the means to go right in and plank down the cash for it.