Harken makes hardware
Harken makes good hardware.You will need three well separated bales on the boom to spread the much increased stress from moving the attachment to the center of the boom above the cabin.Check the archives for project descriptions that are there.We prefer our traveller where it was designed, at the aft end of the cockpit, just ahead of the rudder post. It works better, and is a minimal (but real) inconvenience.DavidLady Lillie