Well, I have a Glock g17 and a 48 coming. Ordered extra mags as well. ...
Get trained! Take a course or 2.
Buy lots and lots of ammo. Get out and practice.
Compete in local / regional and national competitions!...
Aside from extra magazines (which you wisely already got), as Hungry says above, the only things you need for your Glocks are ammunition, range time, and training.
Once are those are paid for, you can decide for yourself if the farkles will add anything to your shooting.
And if you do want to compete, you're going to need holsters suitable for your discipline.





















































