Do many go from single stack to double?

I currently run the Springfield XD-s in 9mm in everything from Stealthgear IWB mini, T-Rex arms sidecar, and occasionally aliengear 3.0 comes out of retirement. I've recently started working at a LGS and they have a Glock 19 gen 4 that's been catching my eye (dark tan cerakote) and I can get it for at cost. Being as the Glock 19 seems to be the gun to compare to I've been wondering how many people have gone to double stack and actually prefer it over any other single stacks you used to carry?And bonus question: any mods you think are highly recommended for the 19s? via /r/CCW http://ift.tt/2rQYkMi