A friend runs the simmons Gen2's on his and absolutely loves them. I beleive that with the heavier front end of the RT the Gen 2 ski would be the best ski, provide more floatation and take some of the choppyness and diving out of it, something I never like about the RT. That was the only ski I didn't get to try on my RT's, wish I would have. The Yammie guys run them
I know a couple guys in BC running the 174 on their RT's and those things absolutely rip. Some of the best running RT's there are.