The Glock 19X has some unique features that are worth exploring a bit.
I have always believed that our sport is about more than an off Saturday. We learn lessons and test ideas that we can implement in everyday life. The history if IPSC Production Division (like 'Production Divisions' in motorsport and a lot of other arenas) teaches us a lot about how complex systems adapt to artificial limitations.
Video game designers live by the credo of "easy to learn but difficult to master." In the real world, the first step is often so difficult that we lose potential participants after the first outing. Carbine conversions allow new shooters a better first experience of practical shooting sports.