I have replaced my cable halyards with rope and had a shackle spliced on. The splice was too long and my mail sail would not go all the way up because the splice hit the pulley. I cut the splice off and tied a bowline to the shackle instead. I still have the same problem as the line won't go all the way up. What size rope should I have used for this halyard? I believe I had bought a 7/16 line.Thanks in advanceBob