The way I view the choice of the two is this, if your going to modify the gun like Hennings trigger, grips, mag well and EGW hammer and sear. Go with the Pro, the price difference will pay for some of the mods. Basically the difference between the two is the Pro uses a short dust cover, standard barrel, DA/SA trigger, no mag well, lighter overall weight, and no scope mounting holes. I've lost count on the number of Limited and TS that I have cut the dust covers back on. If you want to make the Pro heavier up front the slide can be reamed to accept a bull barrel or the stock barrel with a tungsten sleeve.
If you plan on no mods Limited, if you want a custom gun fit to you go with the Pro.
Rich