Thanks for the explanation, and yes the code was re-written, but I'm not completely sold on them either for performance reasons -- I'm just shamelessly trolling for opinions :)

Having coded many of the DnD charcter generation and battle tables in several languages over the years (It's my favorite way to learn and compare languages) separating the dice makes it easier to run the rolls against matrices as well as clearly delineating whose dice are being operated on.

Plus in the game design I've always pondered I've looked for ways to put the dice back in the hands of the players. In table top gaming picking and rolling your own dice is a part of the fun.