Believe it or not, I am back on an old Jobe zip up, oversized so I can fit it with an orthotic. Since I am a rear toe guy, and have had multiple surgeries on my front knee (from another injury), I am going back to rubber for familiarity. Just makes me feel safer. I need to know that I can come out in an OTF. Otherwise, the RS-1 is an amazing design and should work well for the hybrid that it is. I skied Powershells before, but the above issue still comes up in my mind every time on the swim platform, a bit daunting. Fit tightly, the RS 1 should edge like a hard shell. It does have a slick heel section so you come out with the liner on your foot. It may be designed a bit better for double boots, but Andy showed it to me as a RTP option.