PhilUK said..
What is the smallest sail size you use on the Blast? Whats the strongest wind you sail it in? Where do you sail, open sea/sheltered bay/lake?
If you go too wide and use it in stronger winds it will bounce all over the place if the water is choppy.
The Blast 100 is 62cm wide, and the tail isn't overly wide, so I doubt it would be much fun with a 7.5m in light winds. Sounds more like a 5.5m - 7.0m board to me although it depends on water start as well as wind strength.
On very flat water its easier to manage wider boards.
For 13-15 knots I'd buy an 8m & 120l/70cm wide board, it would complement your existing kit.
If you buy a bigger sail for your Blast 100 it wont perform to it's best on that smallish board and if you buy a larger board it wont be fast with a 6.5m in 13-15 knots.
I have used a 5.3 smallest sail in 5 bft.I surf in open sea.I am usually OK when I use it in 5 bft with 5.8 or 5.3
My issue is in light wind and maybe I should have bought the 115 from the beginning.
