I use the Forespar extension as well. I like it...but....expect that long term use the twist lock may start to slip. I have gone through 2 of them, and when I was an Asst Mgr West Marine (many moons ago), it was a common return item for that reason. Once it "slips" it doesn't lock well again, there is no repair, and Forespar will not replace it (unless something has changed which could be the case). I still like the extension. I try not to use it when the tiller is loaded up, instead trying to re-power the boat and decrease helm loads first, then go back to using it. For me, I find that rather than have a clip on the tiller to attach the extension to when not in use, I have a strip of fuzzy velcro attached to the tiller itself , back down the tiller towards the rudder at the fully extended length of the extention, and a corresponding wrap of hook velcro on the extension. When not in use, I full extend the extension and just "stick" it to the tiller. I find it's one less thing to break and one less thing that is protruding into the cockpit to snag or tear something, ....or me.