Well Frank,
First, I never wrote that I don't know what waxy substance you're referring to. I did however ask what barrels are getting "caked up", as I'm unfamiliar with the problem and have seen no references to same other than yours. I politely asked for more information on barrel caking, but have yet to be offered one...
Second, I shoot the same weight JSBs that you do, in both MkI and MkII. There is certainly some sort of coating, but "waxy gel" is not the adjective I'd choose. Perhaps, as posted by a couple of members above, that's because the lubricant is graphite rather than wax?
Third, and only because you have seen fit to pounce on my relative newb status, I'd like to point out that the tube from which said pellets are expelled is known as a barrel, and not a "berral". Even a newb knows that much.