We bought an Asymmetrical Spinnaker for cruising in light airs, but the first time that we flew it (in the lovely sheltered conditions in Belize), we discovered that the tack of the sail was too close to the bow of the boat. The sail was catching on the anchor, the genoa roller furling and, if we lengthened the tack rope, then it would catch the navigation lights - a couple of times when the spinnaker collapsed there was a great danger of a navigation light being ripped off.
The solution was to make a bowsprit, which would move the tack of the sail a couple of feet forward. I'd previously taken some photographs of a removable bowsprit on "Hurrah" a Hallberg Rassy 43 owned by our friends David & Angie, so when we stopped in Ecuador, I drew up a design and had one fabricated in stainless steel.
The design is a simple bent tube, with a foot that slides into a small plate screwed into the deck. The tube passes over the top of the anchor roller and is held in position by a sliding pin. The bowsprit passes through the middle of the"hoop" on our Rocna anchor and there's a small running block on the end. It works well, keeps the sail out of trouble and is very simple to install and remove.
The photos and drawings shown below can be downloaded as a single pdf.