If you open carry definitely practice your retention skills! Before i moved i carried both ways and with OC you need to watch how you stand,who's around you,and constantly be alert! CC let's you relax a bit!
The why for me was easy......comfort! It's not a great reason but it was mine. A large framed handgun just isn't comfortable inside the pants for me. Yes I could carry something smaller,but I didn't get my guns so they could just be range toys and not carried.
I have over 20yrs OCing from my former job so I'm pretty used to doing it
This debate on OC vs CC is a topic that's been gone over alot! I think we all know that CC is the better choice between the 2.