The hole in my bow isn't large enough to accommodate a bowline. It is just over 1 diameter of the line being used. To enlarge, I was considering drilling a 3 diameter hole, approx. 12mm.
My concern is the hulls will leak. So, I'm proposing this procedure: measure to ensure 12mm is sufficient to allow 1 diameter clearance; then allow 1mm additional. Fill the 13mm hole with thickened epoxy to seal the hull. After the epoxy is set, then redrill the 12mm hole.
