I just read this, and I am buried under a Lot of catching up, but since I have the SP-01and a Kadet kit (by the way is yours a Kadet? or the Kadet II? as I seem to remember that there was something about the Kadet II and some versions of the CZ) I'm going to see if I have the same issues you had. I only have the Kadet Kit so I can't try the variations with the Kadet II Kit as well. But I'll call CZ tomorrow and see if they have a Kadet II kit and order it if they do.
Then I'll be more help at least regarding Kadet adaptors. I'm also trying to compile as much as I can "how too" information (both written and recorded) and Diagrams and put them all in one place so folks don't have to go through so much garbage when looking up information either with whatever browser they use. For every solid lead you find on the web you get at least a 100 that have absolutely nothing to do with your search. As I presume we all already know. Sorry, anyway as I wrote, I am working on that project, and I will check my my Kadet Kit with my other CZs