hehe..
The reason I'm interested in the thumb safety is that my M&P and my 1911 are the 2 handguns I shoot most so I would like to sort of align the feel between the two regarding placement of the thumb. And though I have faith in the passive safeties of all modern firearms, I'm also a worry wart so I will never say no to extra safeties.. yes, I'm one of those people who actually like manual safeties! I just like having options... having it and not using it is better than wanting it but not having it for me.
I'm just seeing what's out there for now.. to be honest, I do not like bugging stores too much unless I have money available ready to buy because I'm super paranoid of being considered a tire kicker (did I mention I'm a worry wart?). Always like getting the thoughts of my fellow Gun Nutz first as well.