Re: Clode-hauled tactics
You measuring degrees of tack and dividing by 2 of difference of compass headings?
Many mistake apparent winds influence... and underestimate it... only true way to know your tacking angles, is to take a bearing, before the tack and take it again after... Keep in mind most sailors will over correct during a tack to foot and get the boat back up to speed (unless you are AC quality, you'll lose some speed during a tack).. so get maximum point on port tack... take a bearing... then tack.. wait until you are back up to speed again, take a bearing again, you might be pleasantly surprised.
Also, Point, actual tightest close hauled course, is a very complex interaction of sails, trim, lift, drag, wind speed, etc. The biggest mistake I see people make? They assume that the traveler has to be no higher than centerline. NO, the leech of the main has to be no higher than centerline. If mainsheet is eased (lifting the boom a bit if the vang is eased), the main traveler needs to be higher than centerline to get the leech as close to centerline as possible to get max point. Sorry if this is all old hat for you.. but not sure what you tried yet.
Then there are the obvious things... Sails new? Have you checked draft to make sure it's max is in the first 40% of the sails? Genoa car placement? Outhaul? Have you boarded out the main? Backstay on (depending on wind speed)... etc. how about the bottom? Is it clean? Faired?, templated?
Sorry, there is an awful lot to point.