Hope this helps others: My Catalina 34 has zippers thru the isinglass to extend the traveler sheets into the cockpit. Problematic when the main needs to be eased quickly. Trying to release was an issue. So, a machine shop took 2 SS 3/8 rod and treaded 3" on one end and welded plates on the other the plates are just big enough to support a cam cleat. Drilled thru the traveler and bolted the rods. Cam cleats are now inside the dodger and afford immediate and easy sheet control.