I don't know what you mean when you say "without the insulator installed." Did I miss something in the thread? Also - what do you think is causing the flavor to not be as good as in previous Kayfuns? Is that only with the nickel build?
Yep, within less than 24 hrs I lost the bottom insulator. I've found the kayfun still works fine without it if you are careful. I'm not sure about the flavor issues yet.