I have the slushing sound in my Blade's mast. I believe that the mast must be plugged above the bolt used for the top of the internal downhaul. Therefore I intend to drill a 3/16 hole into the luff track and hope to achieve drainage. Any ideas on how high above the bolt I would need to drill? My intent is to plug the hole with a pop rivet afterwards. ( I have just now realized that the nose for the rivet gun may not fit into the luff track).

Next of course is to find the leak. When I assembled the mast 3M 5200 was a new thing to me. I was surprised at how long it stayed runny. I am sure that I need to address the diamond wires. Beyond that, I am aware of the float the mast and look for bubbles thing.

So, where to drill?

BTW, I am off on a road trip and may be afkb for a week. Excuse my non-responsiveness to any queries.