Not very windy but still a nice session. I tried a mast option today. There are loads of people having their masts measured nowadays and I think that is great, but it says a little bit only (how many masts of the same size and type are measured afterall) about the (in)consistency of mast production. It says almost nothing about the performance of the mast. Measuring a mast the IMCS way says something about the curve and the stiffness, very true but a 64/76 bend is just as much a curve 12 than a 66/78, and I know that when you rigg a sail with both masts, one will for sure rigg different than the other...so curve is just an indication. One curve 12 can be great in your sail, the other curve 12 can be a lot less performing. My opinion is that a lot of masts will work in a specific sail as you can tweak quite a bit by adding or releasing a bit of downhaul, outhaul etc and you should KNOW WHAT TO LOOK FOR IN YOUR SAIL instead of only focusing on numbers....

Today I sailed the racing Blade with a STIFF TOP mast, curve 8! The mast was also too soft for this sail, but by adding a spacer or 2 it still had a nice profile and twist was looking really nice. The sails are supposed to be rigged on a 64/76 bend curve, which is a 12, so you can definitely say that I was  'on the wrong mast', but hey, it was still fast i think and if it would have been a tad stiffer (so not necessarily another bend curve)  it would surely have been faster...I also know that the sails also work great on a curve 17, which is flex top. That would mean you can apply a bit less downhaul as the sail will open up more as a result of the flex top bend character of such a mast. So my advise is to rigg it right: make sure you know what you want the sail to look like when properly rigged and do a bit of tweaking with outhaul, downhaul, some spacers when needed and you will have a nice day of windsurfing!