Ridley's Cohort
First Post
I certainly hope it works out to be a decent solution. My take on a solution to the issue of excessive stat dumping and optimization, in contrast to 4e's solution, is to increase the number of attributes PCs depend on, not decrease or concentrate them. I think that WotC is still over-emphasizing Con, Dex, and Wis saves and that's blunting the change. But I plan on using Cha instead of Wis in a number of circumstances.
There is a lot room for innovations along the lines you suggest, although I suspect it would probably be too fiddly for most people. For example, I think there is a strong flavor argument that all spell DCs should be based on Charisma, even if your "primary spellcasting stat" is something else.