I’m having a sailmaker add a cringle about ten inches up the leach from the clew (with some additional reinforcement patches sewn in). My Bimini is higher than yours and I can’t flatten the main going upwind. The problem with using the topping lift is it can open up the leach too much. I have a a long strap of webbing with Velcro sewn to both sides to wrap a few times through the cringle and beneath the boom. We do that on a J/120 I race on, and it’s great because it won’t loosen but will slide along the boom if you adjust your outhaul.
Hans Dose
Hull 569
“King’s X”
Alamitos Bay, Long Beach, California
> On Aug 11, 2025, at 11:13 AM, Dean Vermeire via C320-list <
c320...@lists.catalina320.com> wrote:
>
> The Bimini should not be so high as to interfere with the boom while under sail. The topping lift is great for holding the boom up when not under sail, but your sail will not shape well if the topping lift is holding the boom up higher than the sail would. Reinforcement on the Bimini is good, but look at lowering the Bimini.