Hello,
This link is a form of internal tang, one that allows you to attach a line directly, without intermediate hardware. I don't know what kind of strength loss the trip around the link might effect, nor how an off-angle pull (the link must be installed in line with the mast, not the runner) will affect things, nor how strong the fitting itself is. Seems like a regular internal tang, with a T-ring (
http://www.navtec.net/products/index...ies&part_id=15) would do the job better, and be easier to rig and downrig.
Fair leads,
Brion Toss