I have always carried at 2 or 3. I have been toying with the idea of 5 o'clock, since I have gone to a smaller EDC, but I feel like its exposed. I can generally make sure my shirt is covering it at 2-3, but 5 is obviously behind me. I can't tell if I am printing, etc... Also feel like someone could just come up and grab it.
I am still adjusting to CC. I can finally accept that my gun is not constantly exposed to viewing. I have a thinner frame and find that the best position for me is 4. The 3 o'clock just leaves the butt pressing away from my body.