RE: uprade from nirvana?
Hi..
I will recommend a few boats. They are good for different things...
To be able to sail in lots of wind...
RC Laser. It looks like a little dinghy, and is 41" long. What makes it cool is you can buy an optional smaller sail (they call it a 'C' rig sail) that will allow you to sail in very heavy winds--when other boats have to pack it in.
[link=http://www.sailrclaser.com]www.sailrclaser.com[/link]
Kyosho Seawind. This boat can't sail very well in winds above 15-20mph, but it has the scale look of an America's Cup yacht. Check out this web site for more info... [link=http://www.seawindrc.com]www.seawindrc.com[/link]
Bottom line: the only boats that really go well in heavier breezes are those that are either very large (Like a Wheeler, which is 79" long) or boats that allow smaller rigs ('storm' rigs is what they are usually called) in higher winds.
Good luck!
Andy