Sport Today

I'm looking for a North Infinity sail around 4.5m to work with
my old flex-top mast (I am also willing to accept
Constant-curve).

Used to have an older 4.5 Infinity that was recommended by North to work
with a flex-top mast. It never worked well. That combination always felt
like I was sailing a sheet of plywood. When North started to recommed
constant curve masts, I tried it on that sail. It made a world of
difference. This old "sheet of plywood" handled like a sail should. I
feel that flex top never worked well with the smaller sails. North would
never admit that. Try a constant curve on that 4.5. I think you will be
pleasantly surprised.