Plummet said...
i think you can expect a 10 knot wind range comfortably with the c4. sure you will be able to get maybe 15-20 knot range but yourl be underpowered at one end and full trimmed and fully powered at the other.
I can stay upwind as low as 15-16 knots on my 10m but its pretty damn boring until 18-20. over 28 its pretty silly.
Probably the most realistic, sensible comment I have read on seabreeze for ages.