I've only been shooting actively for about 9 months, and most of that has been with a Glock, including my first few matches. Besides the G34, I also have a G17 MOS, SP01 Shadow and a Shadow 2.
I'm planning to send the SP01 to CZC to have the slide milled for an optic. So, over the next couple of months I'm going to make the switch from striker fired to da/sa, and from iron sights to a red dot.
While I'm waiting for my SP01 to return, would it make more sense to practice with the G17 MOS to get used to the dot, or the Shadow 2 to get used to the handling and da/sa trigger?