spin halyard
The exits on the Kenyon mast are original. On my friend's E38 that I crewed on and on mine, no problems with the halyard on a reach. When you hoist the chute, if you pull it all the way up, let the halyard back out again approx 6 inches, that way it won't jamb up at the top of the mast. I've flown the chute solo using the ATN Tacker around the headstay. Using the foreguy, I can crank the tack down almost to the deck, slide the car way back on the outside track, and use it like a giant genoa. So far, I've not had a problem with the halyard jumping the sheave or hanging up. (Original, I believe, wire to rope halyard.)
Since you switched to all rope halyards, after you've flown the chute and taken it down, check the halyard for chafe. The exit from the masthead looks open enough. Only a couple more months...
Clayton