Watch the mast chord size. Manta seem to have more than one.
Mine is 124mm but my mates is only 112mm and our local expert reckons that one bends and that he can feel it.
As an aside, this week he tried an Axis and reckons that it has a real stiff mast compared to all of these alu masts.
He has Fanatic and NP himself.
He's very impressed with the Axis, way better than all the rest (he's sailed 5 brands) he reckons.
Not that fast but very easy to sail and gybes itself.
Very well engineered and the wing mount is brilliant.
But, nearly 3 times the price of the Manta.
PS....I'm not an Axis salesman.