I have a C400 MKII with Schaeffer 3100 headsail furling gear and I need to order a new sail. Unfortunately, I'm about 1000 miles away from my boat and I can't find my headsail measurements (specifically the luff i.e. the distance from the headsail attachment up at the halyard to the tack on the furling gear). If anyone out there has a C400 MKII and happens to know that measurement, please let me know. I'm planning to buy a 110 or 135 (already have a 155 but it needs major repair from a Gulf crossing). Thanks in advance, Mark