dry weights new 23cc vs old hulls

[hookedup]

does anyone know the hull dry weights on the old (70's)23cc potter hulls? or the weights on the post (80's)potter hulls? the new ones are 3070 lbs and i was told that the post potter hulls of the 80's where missing about 900 lbs in glass? not sure how true all this is but i figured someone here would know if the later models where cheapend versions of the origional potter hulls of the 70's.