I posted this same question under another club, but it does apply to all semi-auto's. Also, you probably put more ammunition and time in at the range in one year than any 10 of us will normally do during a lifetime and I figured a "second opinion" from a pro couldn't hurt!
I was looking at an EAA Witness in 40 S&W recently and after I'd removed the magazine, I closed the slide by pressing the slide release. I sometimes do this to a new gun to gauge the strength of the recoil spring and to get a feel for how tight the slide/frame are. When I did it this time however, the store owner almost had a stroke!! He got a look of horror on his face, his voice raised about three octaves and he quickly, and several times, let me know that you NEVER let the slide on ANY auto close without a round in the chamber unless you close it slowly by holding the slide with your hand. He then went into a long rant about guns he's seen with broken or loose ejectors caused (according to him) by the force of the slide closing on an empty chamber. I didn't argue with him since he owned the shop, but I did wonder about his reaction to my not closing the slide slowly.
I'm in my mid 50's, owned over two dozen semi-auto's (and as many non auto handguns) over the past 35 years, from .22's to .45's and have never had an ejector break. I also know probably a dozen people who've owned auto's for at least 20 years and none of them have had any problems with broken ejectors. The Witness is almost a clone of the CZ and CZ's are based on the Browning HP, so I assume what applies to one should work with the others.
My question is have I been doing something wrong all these years by letting the slide close without slowing it down or was this an over reaction on the part of my local dealer?