I'd call it semi-weighted, but describing the 'touch' in words is futile, at best.

I consider the G70's action as the best plastic action on the planet, but is is not wood. Realize, though, that piano is only one of hundreds of different sounds in the G70, most of which benefit from a lighter-than-piano action (ever tried to do organ licks on a piano action - ouch!).

I think the only way for you to get a good description is for you to play one (the G1000 and VA76's actions were VERY similar, if you can't find a G70), and see for yourself. It will spoil you for anything else!