Hi,
I got all the measurements from the dealer who has an FX-One at his facility. All were taken from a common point (the base of the extrusion). Everything, including the extrsusion shape (and weight?) seems correct. It's just the last 8 inches. Luckily, this is the easiest place to make the repair. I might actually get the parts today, as the package escaped Europe and is in the states and has cleared customs.
In general, it appears the boat has good (possibly excellent) Quality Control. At least compared to other cats I've owned so far. However, this mistake does seem weird. Maybe they are supplied at specified lengths from an outside aluminum vendor? Since all measurements are taken from the base, the mast rigger at Hobie placed everything correctly. Since the head piece is attached directly to the head, there is no measurement. That might explain it. I gave them the serial number. I hope that I may have prevented this in other FX-One's, because I really believe this boat has a great future for single-handed sailors like me.
Thanks !
Steve