Hi All,I am planning on running my external halyards on my Catalina 30 internal of the mast. I do not plan on running them back to the cockpit so the winches and cleats will remain on the mast (one on each side). My question is in regards the exit strategy around the halyards leaving the mast. I have 3 halyards (main, head and spinnaker). Should I cut 2 openings along side the mast above where the winches are and mount some type of block that exits the halyard from the side of the mast? If so, will that opening weaken the mast at all? Secondly, what type of block can I install in the cut-out for the halyard line to exist the mast? I can’t seam to find them anywhere – I am assuming most supply shops sell them.Thanks – Rob.