Jim,
You don't take a turn designed to be driven at no more than 180 mph at 200.
Why not vary greenspeeds to suit design? Greenspeeds change through the course of a day anyway, some slowing and some actually speeding up (someone actually claimed that to me the other day so if anyone wants to challenge that one I'm not your source).
Why take them to some limit that doesn't work in the first place and then say you have a problem?
It's a created problem, one that doesn't exist once you challenge the assumption that consistency is mandatory, as that's fallacious and impossible to maintain throughout the round. I'd also apply the "what would Linc Roden or Bill Kittleman do" standard to the "problem".