Shoulder holsters, still a useful method of ccw?
You bet it is but don’t go to a Carbine Course and expect your firearm instructor to let you carry that way on a firing line. There are a lot of really nice CCW shirts from 5.11 tactical and Woolrich Elite that can actually be quite useful if you are carrying a firearm in a shoulder holster. There are many different types of shoulder holsters so don’t think everyone of them is going to make you look like a Miami Vice character. Not all of them are going to cost you $100 either. The one thing that seems to have changed though is a direction away from Vertical carry.
I’m not a big fan of standing in front of firearms and I do understand why should holsters are not allowed on many live firing training but they are still one of the most comfortable ways of carrying a large firearm. Galco holsters are probable the highest prices shoulder holsters while Uncle Mike’s holster, Bulldog holsters and Elite Surival holsters are far less expensive. The magazine holders are something that you may have to think about because not everyone is going to want a 2 double stack magazines on them. Sometimes that can be a bit too much tug and pull on your and your shoulders will know it.