I have never stuck one myself but have unstuck a number of them for other people, most of them admited to cranking them down with a wrench, but I do believe that greasing them like the directions say isnot abad idea,as well as keeping them from corrosion in long term storage it keeps them from sticking if those machined faces dont exactly match. One of the things I have noticed is if some one once cranks them down to hard and it slightly gauls the machined faces they tend to not only blow back more but to keep right on sticking. I have blacked and fited and polished mine so I also have reduced the blow back into the threads, the only one I did not do this on is the Triumph it did not need it.
I tried the tape and it worked ok,I guess I just like messing around with them.Lee