If we start with the premise that the “ideal” rear binging is a simple RTP (see Andy, Nate), the more restrictive you go from there, the less ideal the set up is. There are a number of hybrid RTP options such as adding a Maha heel cup or even the Reflex R-Style. Taking this argument to the logical conclusion would result in the belief that the opposite of the RTP, in this case, a rear hardshell, would be the worst option. Having skied in double hardshells for over 20 years and having attempted to revert to an RTP, then RTP with a heel cup, then an R-Style, then a Wiley rear wrap and finally back to the double hardshell, I can say with certainty that while the double hardshell may be less than ideal, it is awfully hard to switch back once you are used to it. That’s not to say it’s superior; rather you come to rely on the security and it’s hard to give that up.