Great discussion, Eric.

Regarding turns not being enough: Outside of Optis and 420s jamming themselves inside of giant pinwheels in light air gate groundings, the most common example (across all boats including cats and keelboats) has to be the port approach to a packed starboard layline at the weather mark in large fleets.

If you force others to avoid you so you can sneak in behind boat 3 of a 20-boat parade, a circle isn't enough. You should have ducked the parade, and been 21st. RET...

Mike