i belive the barbless thing comes from the "non-boyant lure restriction"
once it is a Non Boyant restrictions i belive it means it needs to be a single barbless...at least that is what i thought....

i like the rule as a whole, but think it wont help..i floated the satsop and the hump this weekend and fished the skok today, never even saw a gamie at all...only seen em on the skok once a couple years ago...actully i think i have only seen them in the salt, other than that one day on the skok...