I sail my Nacra 6.0na solo a lot, with a jib and its a rocket ride..even been out in up to 15 knots of wind..lots of fun though
How much do you weigh? I have thought about just taking my express out without the jib and just seeing what it would be like, but at 160 I don't think I could right it by myself (no matter how many bags of water I tie to the line