Older race sails vs new designs
I'm coming back to windsurfing after a six-year layoff, and any advice would be appreciated. My old sail quiver is 1999-2000 5.5, 6.5 & 8.0 Gaastra Total Flow with the twist top and 3-4 cambers. I'd like to update and add some larger sized Severne or Neil Pryde, but how does the sizing compare? Does my 8.0 tight leech equal a larger size new design sail? I'm 73kg, advanced intermediate with a new F2 Lightning Race Hybrid and a 145 litre F2 Stoke. Thanks!