FINALLY GOT IT OFF!!!! Hallelujah! Going to wash this thing up and use Chapstick or something on these dang orings! Thanks for all the tips and help folks.
If anyone else comes across this, I HIGHLY recommend a thick, flat type of rubber band on the svoemesto logo/ring to grip! Oh, and if using a 16 g Luer lock needle to put in the JC hole, it will bend. LOL
Over the past year the two smartest purchases I have made are:
1. A 1/16 inch drill bit (for the kayfun L+, R91%, and other attys with base with air hole, including the K4). This has never failed me, doesn't break or bend. Only slight "force" is ever needed.
2. A pair of "Deluxe Latex Gloves" (Rite Aid, "Home" brand). I also have a box of nitrile gloves but those sometimes do not provide enough grip. I just bought a replacement pair of the Deluxe Gloves a couple of weeks ago. Cost $ 2.99. Sunday last I had my first instance of what looked like arthritis fingers, rebuilding the K4. Finally discovered I had Parts # 10 and 11 were reversed./pie down. Fixed! I should never see that again.