LionsLair: I've already asked Fencer about that. The cube games are not separate variations and so they "share" the same ratings scale. There are arguments for having the games as separate (another rating scale to climb) and for not (it keeps things simpler, not least of which is the length of those dropdown boxes!). Fencer's all for simplicity at this point!

He did mention, though, that when he unveils BrainKing's Ladders (in due course, lol) we'll have separate ones for cube and non-cube backgammons, so we can use those to demostrate our respective chequer and cube skills. :-))