we weighed, the new eagles, new ventilo and the current Javelins.

there are two types of eagle's 18HT, one is build full out of carbon (not the shrouds and the stays)
this boat weighed 125kg with the lighter boards. To measure to our class rules, heiner made two heavy daggerboards filled with some lead.
the glas variation of the eagle had 135kg with the lighter boards.

the new Ventilo (carbon hulls) weighed 133 kg.

to our surpise the new Javelins (glas and vinilesther) were very light, our new boat weighed 128.5 kg.

But I think that it is not too easy to reduce the weight of the whole boat, without making the boats too expensive.
The importand thing for our class is to have affordable boats and a good number of sailors. I think that 130kg is allready quite light.