Even though I was very surprised at how well an untucked button up shirt concealed my G21 with a OWB holster, I was curious if maybe a shoulder holster would work better for the larger Glocks like the 21 and 30. I live in Houston, so this would be a fall/winter option only. I have tried IWB even with a Kahr PM40, but it just isn't for me. I primarily carry a 442 (edc) or LCP in my front pocket, but I would like to have and would prefer the 30SF when the weather would allow. Wanna kill these ads? We can help!