Well, let's take a quick look:


Seems to me that the Finn mast is a circular, maybe tapered pole with one small sail on a boat with low amount of beam to counter heeling forces. Should be a lot easier to engineer flex characteristics within a given range than a 30', teardrop section with a taper and diamonds on a 10' beam double trapped cat.

When you introduce fittings for the spreaders and diamond hounds...there will be variation in their precise location. This likely accounts for some of the differences between masts. I've also heard the rod rigging of the diamonds is not always uniform & consistant in size between batches...that's another source of variation. Marstrom also changes the type of cloth being used on the masts at some point.

So what's the problem with some variation in the carbon sticks, dynamic or otherwise? You've stated the range is less than with alloy...and that was the whole point in the first place.