Hi Dave,
I would not call the "Formula Catamarans Australia" Blade (the only one I have experience with) lightly built. It is every bit as strong as the Taipan, with it's standard Kevlar outer skin and Kevlar reinforcing of bulkheads and frames it seems bullet proof <img src="http://www.catsailor.com/forums/images/graemlins/tongue.gif" alt="" />. Or at least Hobie 16 proof so far, I have hade one bounce of leaving a dent but no cracking of the skin. <img src="http://www.catsailor.com/forums/images/graemlins/shocked.gif" alt="" />