I see where a few have their slide take on a diet and make them lose weight. I'm told this is to reduce flip. I see several examples of this working. Well, here's my story: I drive my poor Wife crazy for a couple of years winning about getting Walther's Q5 Match. I get a Canick, really nice but really needs a new trigger - your finger gets trapped onto the guard as it breaks - And continue to pester Her for the Walther. This Christmas I get one! Yeah me. It's super nice but at 2.5X the price of the Canick I'm bothered. Then Walther comes out with the SF. Steel Frame. I can't trade or other wise make financial sense of getting a SF model. Then I get my hands on a CZ Shadow 2. OOOhhhh! Instant love affair. I chat with a guy who gets one and immediately sends it off to have the slide put on a diet. Here's my question: Why? This is the Shadow "2". I'm am sure that the fine folks who made it are well aware of putting a slide on a weight reduction program. So if it's such a good idea to cut the slide, why doesn't the factory do it? When you watch a CZ Shadow being fired it looks like a 10 degree flip. Or at least not a 20 - 25 degree flip. What gives?