I've flown a lanier laser for about 10yrs. Im on my second one now. You can get the weight down to about 16-17lbs with a zdz80. My first laser was stock. My second one has the Godfrey (sheeted foam) turtle deck and hatch cover. The fuse was built with light ply rather than door skin. The wing cores were drilled and cut out with carbon mat and contest balsa fully sheeted. By doing this and "slightly" larger tail surfaces makes it pretty competitive. Godfrey has the next version of this plane out just never have forked over the money for it.