Okay, we've had several rather serious kelp encounters. TransPac '17, we did a lovely back-down/sail change, simultaneously shedding kelp on the keel and an undersized sail. We did another backdown mid ocean, likely due to a fishing net.
In the Cal Offshore, we did ANOTHER back down for kelp.
We've borrowed a stick (more like a harpoon) from Deception to try to do better with Kelp. Thanks guys!