Heartsdelight, have you tried putting some VG around the 2 o-rings above and below fill port?
Maybe that might help with getting it off/on.
These 2 o-rings under the TC...
View attachment 828577
Also if those 2 o-rings tolerances are looser than should be that may be why you are having difficulty. Perhaps change those o-rings and see how it is then (something to try).
My top cap is not too tight nor too loose.
I'm loving Heartsdelight Apple Cream Cake and have it in a Prime. It's totally awesome!

Very happy I made a second batch too.
I have a caramel ice cream juice in the X and it is soooo rich and tasty with the clapton.
Thanks for the LV info.

I ordered more wire too.