From the sail owner:
We used the G-spin AKA “big red sail” on segment from Anacortes to Bellingham coming home. Made 3 hour continuous, port tack, broad reach in only 4 to 8 kts of wind maintaining 2.8 to 4 nm/hour. Was amazing light air performance for that sail coupled with the main; and was the longest continuous tack and perhaps the most physically pleasant extended period of sailing I’ve known on the MM. the word idyllic comes to mind.
Making 3.2 knots in 5 knots of real wind. Did the maiden crossing of the Straits of Juan De Fuca today. 40 nautical miles of beating into the wind against
1 to 2 knots of current and still managing average of 5 knots per hour. Thanks again for your advice.