I know this topic has been covered before, but I have a few different questions about it.
Is shoulder pressing behind the neck, going down to about your ears, really a bad movement? I used to ONLY do the shoulder press in that motion, and I don't think it directly caused me any injuries before. When I do the exercise, I also bend my neck a bit forward so it is almost staight up and straight down.
Also, is there any big different in muscle groups when doing the motion? Pressing in front seems to be completely different than pressing behing the head. It just feels different, especially in the lats. That could be in my mind though.
The elbow going below the ears is where the risk increases, I dont really like the feel of them that much anyway but I guess my shoulders are a bit tight.
I was injured doing front presses and I wasn't bottoming out, I haven't flat benched in about a month and a half (and have been injured for about 3 months) because of lightweight front pressing. I was doing about half of my max, but still, shoulders didn't like it.
You are going to be forced to use your back at least somewhat in a front press just to stabalize, so yes its slightly different.