You say the rubber tube is "glassed in" - I'm not sure what you mean by that.
I think I might. I have a short rubber tube just aft of the stuffing box held in place with 4 hose clamps, 2 at each end. The 2 aft clamps and the bottom part of the very end of the rubber hose really do look glassed in. The fill material even covers part of the clamps. It was rather disturbing and I checked another J/30 to see what their set up was - it was the same.
I know this is hard to visualize. I'll take a photo so you can see what I'm referring to.
