When I first got a Glock I thought that lever in the center of the trigger was a form of "snag safety." Well I found out later it is a drop safety. But it still performs the function of "snag safety." And I have gotten some undershirt caught inside my IWB holster more than once and felt the glock not go in normally, stopped and checked matters. Not saying the glock would have gone bang without the drop safety acting as "snag safety", but you never know. I have considered buying a Smith M and P to try out, given all the good comments I have heard. But the M and P drop safety in my observation acts solely as a drop safety and does not appear, to make it harder, to catch a bit of clothing on the trigger, in such a way the gun goes bang. So in your opinion is my concern justified or just over thinking what might/could happen?