"The best? Look through the threads on this forum concerning patch lubes. There are pages and pages with dozens of opinions on "the best" patch lube. In general, to stay out of trouble, use a damp patch with your choice of lube and swab at least every 2nd to 3rd shot. I believe the people that very seldom have to swab are in a minority."
Please refer to the very last word in my post, this was made tongue in cheek as we all know that even after I discovered the very best patch lube, and reportd it here on this very forum, that others still try to best it (all unsucessfullly of course) and thus there could be another 670,321 posts with lesser potions and ideas.
Carry on