My first Glock, also 10mm

[68Charger]

Just picked up a Gen 3 Glock 20 the other day... never been a Glock guy, handled a 17 and a 22 before, they just didn't feel right. Maybe it's the larger frame of the G20/21 (it's NOT an SF), but this feels pretty good- haven't shot it yet, but it fits my hand much better than Glocks I've handled before.

I've wanted a 10mm for a while, been looking at S&W 1006 or 1076, but this one popped up cheaper, with accessories... figured I'd give Glock a chance.

From what I've read, a 22# recoil spring is recommended for full power loads- I also may look at a 40S&W barrel for it at some point... any other recommendations for the G20 platform? Anyone carry decent ammo in Colorado Springs area, or do I just go mail order? More pressure to start reloading, too