I made up a spin. pole from a tapered alum. windsurfer mast that I found used at a local dealer. I was concerned about the tip surviving. So what I did was run the front wires to the tip. I mounted the tack block about 10 inches back from the tip.I then added a second set of wires about half way from the tip to the forestay bridles. Instead of the tack pulling on the tip, It was pulling on a much stronger or better supported part of the pole. It would load the 4 support wires instead of just the front 2. I induced a little prebend at the furler and that was it.

I was running a stock Mystere 6.0 chute on a Hobie 18. I ran this in over 20 Knots of wind and had no problems with the pole.

I paid 70 bucs for the pole and wound up spending a total of 300 for everything but the chute.

Mike