Hooksey said..
Does anyone have any experience with the chinook carbon booms?
Just bought a wave boom recently. Its a strange looking shape and not the skinniest diameter in the market but in terms of functionality i'm pretty happy. The attachment to the mast doesn't require a shim and I've had no issues with the boom slipping. One nice touch is the extension actually shows the total boom width, so if your sail requires 165 boom you open the boom to 165 rather than do a bit of mental arithmetic adding say 25cm of extension to the base boom width. I think Severne has similar thing.
I've been anti-carbon wave booms for sometime due to using a dreaded NP one for a short time and also being a light weight I never had any breakage issues with Aluminium ones. But in a bid to make my rig a bit more efficient I've gone carbon and also ditched the US cup style base in favour of the Euro pin.