Memory stages are TOUGH, even the night before, in some cases.
I can't think of a single thing that would help much if you haven't scoped
it out in advance.
I've shot two stages that stick out in my mind that were Memory Stages
one of which I was unprepared. Never solved it in time. Sucked badly
I spend a half hour on one (at Frostproof, about ten years ago) that I
could NOT figure out. Sucked just as badly
But, I also remember a COF in Long Island, about the same time, that
I aced - figured out the solution in 5 minutes (in the last few seconds)
and shot A level even though I was a C, at the time. Still feels GREAT
to remember that single stage