Mine is about 6.5. (That's using a fairly coarse fishing scale.)

It flies fine at that weight - lumbers along slowly just like the few other lt-40's I've tried.

I wasn't too concerned about the weight as I built mine. Each pound only adds 2.5 oz/sqft to the wing loading.

Fuelled, mine will have a wing loading of about 18 oz/sqft ... which is still a low loading.