See if the shop has a demo, and take it to the range. Ask yourself (after all other things like size and comfort are taken into consideration) whether you can fire that firearm accurately in a stressful situation. If you're having a hard time staying on target at the range, keep looking. If it were me, I'd stay away from any high caliber firearm with an extremely chopped barrel, unless you were very familiar with it. Just my opinion. Anything in the .40 + area with a barrel long enough to make it easier to keep the firearm on target, is going to be very difficult to conceal in warmer weather.