For the OP, we don't actually land at roll 15.....we time it and wait for her to come upright and attempt to set it down then.
My second favorite NATOPS term: quiescent period. My favorite is of course "bromotrifluoromethane," which was sadly removed from SuperHawk.
I never really understood why the Free Deck and the RA recovery had the same limits, at least during daytime. If I had the choice, I was always going to pick a Free Deck recovery first, just to mitigate the potential from murdering someone.