Here's what I think I understand:
From what I've read in pool school and elsewhere on the forum, higher CYA = higher FC required for effective sanitation. Additionally, the CYA level has little effect on the FC loss due to sunlight.
Following this logic, it seems that a high CYA level would be just fine, as long as the FC level was maintained high enough. Bleach use would be the same, since the daily FC loss would be the same. Any necessary shocks would require more bleach than with low CYA, but normal chemistry maintenance would be comparable.
This forum seems like a very logical place, and the first recommendation to one with high CYA is a partial drain. It seems like it would be perfectly manageable, as long as one fully understands the situation. The only issue I see is the really high shock levels.
I must be missing something here, right?