Take a look at the Wilson KZ45.
It's the fastest reloading gun I've got. Straight shot to the mag release (ie no curve on the grip), and a magwell that puts just about anything short of an open gun to shame.
I like my single stack 1911, but the KZ is perfect for CDP or Limited 10. Just swap in a tungsten guide rod for IPSC and out again for CDP. The only downsideis that it's fairly light. Makes for fast acquisitions, but it is light.
On the plus side, the slim profile makes it more carryable then an STI ---
Later,