I was debating which version to buy since my 9c doesn't have a thumb safety. The only ones in stock were the ones with a safety so I bought one. I'm not too concerned with the safety being accidentally engage or disengaged. Its pretty stiff on the one I purchased.
I purchased 9c a couple of months ago and have shot a couple hundred rounds with it and like it a lot. Fairly easy to conceal and try to carry it often. I have been looking at the 9mm shield for a while as well and added one to the arsenal today. Hope to make it to the range tomorrow so I can...