The longer "link" to the toe rail (one hole back like rob says) will move the block inward a bit so the lead will be inside the stanchion. If that works I like the strop idea. It wouldn't have to be spectra as long as the corners are smooth or you use a shackle at the rail end. Also, moving inside means you can use the snatch feature if that is important. Otherwise a standard block will work and you can keep the snatch block for when you gotta snatch something.