When I purchased my '18 from Bill Willmon, he had a beefy "righting" line rigged at the port chainplate lifting point with a heavy duty carabiner at one end and a loop big enough to step in at the other. It resides at the bottom of the spin bag when not in (God forbid) use. This is an elegant solution to righting a capsize prior to a turtle scenario, and was, I think, an outgrowth of breaking a centerboard while trying to right the boat. Since I haven't managed to turtle 178 yet (touch wood), I haven't tested it in a turtle, but in theory if thrown over the hull to the opposite side and stepped into it should create enough leverage to right the boat. Bill may have some pics, or I'll try to drag myself into the 21st century and upload some.
Opening
Day yesterday..80 degrees - 20 kts
As is often noted here: " Lucky you live Hawai'i"
Aloha
Steve