I never mix my Lego Technic sets, ever, there's too many set-specific parts. Of course, I've never taken one apart either, so it's a moot point. This will be the first time and I'm not keen on it, but I have to, just to create more room. I have another house, one I don't live in, and most of my Lego stays there, but it's getting crowded. 😁