I'll give another vote for the Optima 2000. It fits like it was made for my Glock 20. It's held up real well and I'm very happy with it. The down side is that they stopped making them. You can still find them on the auction sites, but at elevated prices.
I've seen the doctor website and the site looks good. Kind of a beefed up optima. I'd like to see one first hand before I dropped nearly $300 on one.
I'm sure Trijicon makes a quality product but it would seem to bulky to me to put on a pistol.
CAN YOU SMELL WHAT THE GLOCK IS COOKIN'?