How to ID Maxxis sticky?

[DirtMonkey]

Just for more info, I bought 37" bias and 37" Comp (sticky) at the same time last year. The only difference anywhere is the yellow patch on the sticky. They do no say competition anywhere on them.

Thats odd...as already mentioned, the stickies say "competition" right on the sidewall. They do have a DOT label, but its just a formality and has nothing to do with tread compound.