I have both the 9 and 45. Being in CA I have to jump through hoops to get the models I want (no thumb safety). I'm going to have a shoulder holster made for the cooler months of the year. I would like to have a 45 Shield on each side but because I already have have a 9 I will have the 45 for my right hand, 9 for my left. Better than carrying extra mags and needing to reload, lol. Plus, the rig will be fairly closely balanced with a Shield on each side instead of mags on one side. The reason I bought the 9 was because the 45 wasn't available yet. I love the 45 Shield.