Spoke with Annapolis Rigging a couple of days ago. They fabricate a thru bar that is compatible with the orginal equipment Kenyon (Rig Rite) 4060 J30 mast section and spreaders. You remove and discard old spreader brackets. The new kit comes with a SS reinforcing plate that rivits into the existing bracket holes in the mast, but has a hole cut out of center of the SS plates to allow the thru bar to pass through. They are making a kit now for a customer...price $450.
The other option is the Hall kit, but you cannot use your old spreaders. Hall supplies the kit for $950K, I am not sure if this includes spreaders. The Hall spreaders are a little more tapered and aerodynamic than the orginals with the Kenyon spar. I do not know if the Hall kit makes provision for a SS reinforcing bracket over the existing rivit holes...I would like to find out how this system works. Need to make choice this season.
