doug,
if i was younger and understood computers as well as my son, i'd set up a link. but, being an old fart, i can only tell you to look at page #7 on the for sale forum. capt. vic has an ad for his mounts, with his e mail addy. i know darin jordan-on here under that name-has bought one recently. if the info on the sale ad doesn't help, darin might be able to.