I'm looking at buying a neil pryde 7.7 diablo currently using a 7.5 gastra total flow aprox 1999 or 2000 model in great condition. Would there be much difference? outher than .2 of a metre.
And then I have to convince my wife I realy need one.
Chalk and cheese.
Beer and bourbon.
No comparison.
It will be a little less powerful but have a much wider wind range.
However you do know you'll need a different mast? It won't rig anywhere near right on whatever you'd be using for the Gaastra.
Not sure the Pryde Diablo is that new either. They were quite a while ago. They had the shear tip top batten and quite a long boom length I think.