Just a thought for you G1ant; some folks these days are opting for maximizing cash with their MS and using that to pay for rooms with cash. Since the devaluation, it seems that might be an option here too. Going from memory at your post above, that club room might require $13,200 in spend, which would generate $290 in cash on a 2.2% card (or even better at $346.50 if you have the BOA Travel Rewards card and a platinum relationship with BOA.)As long as the Blu in Prague stays at 44/66 I'll keep the card. A Club room for $125 in MS costs is a total steal. It was much better with the last night free, but I'll still take that over paying $300+ cash for the same room.
So you might stay a bit more flexible by cranking up the MS and earning cash back instead of locking it into the devalued Carlson program.