I worry about fifty feet of pvc weight aloft. I use 1/16 stainless cable which is looped at each end and bolted to the mast with two 10-24 stainless bolts and nuts. the wire loom is wire tied to this cable then fished through the mast. The hard part is getting the steaming /deck light wire to exit the wire loom and out the midportion of the mast. fishing two wires to pull the loom through is how I did it. one wire attached to the deck/steaming light and the other to the top wire. after the wires are in place then tightenand fasten the stainless cable to the mast. this keeps the slap to a mininum and takes the stress of the wire hanging fifty feet from the top grommet. Minimal weight is added. good luck missing the halyards.
