I agree with everything posted so far. The XSE has been through several variations, with the earliest having the duckbill grip safety and blade type three dot sights. Then they incorporated the Novak style sights, and most recently, the beavertail grip safety with the speed bump.
The first production model Colt I am aware of with the beavertail grip safety was the Combat Elite. Then these were incorporated in other models over time. Even the latest Defenders have the beavertail.
Colt is known for changing the specifications of a model over time. For instance, the early Combat Elites from back in the 80's had several variations. The very first ones had NM barrels and Pachmayr rubber grips. Then, the NM barrels went away, along with the Pachmayr grips. Then the blade sights were replaced by Accro sights.
My most favored Colt at the moment, is an early XSE with "duck-bill" safety and blade sights. It is one heckuva good gun! I use Wilson 47D's, because I like them, and no problems, mate! My bedside gun is a two-tone Rail Gun with the Viridian X5L green laser/light combo. Also an awesome gun!
As far as the grip safeties are concerned, I find no functional difference between the so-called "duck-bill" and the beavertail. To me, it's just cosmetic. Others may disagree, but that's how I feel. Depends on an individuals hands, I suppose. I have small hands, and either works just fine for me.
I have also managed to acquire a CQBP, and next, perhaps, will be a Special Combat Government Carry. Those are nothing short of awesome! I keep yearning for a Delta Elite with XSE specs. It will come, eventually, I think!
