well mine is NOT 45 oz,, in part to the finishing woes I suffered, in part to the monster motor I used, and in part to , well, lets say its not the woods fault ok?
I made a couple decisions that cost me ounces, one was to shorten the nose because, well, I was using a monster motor,, now I have to carry a substantial amount of nose weight because when I did the math I screwed up and used the wrong weight for the Magnum,, yeah I know measure twice cut once,, well thats what I did,, but,,
in any case, I am flying at right around 60 ounces, which actually on a 640 inch wing is not that bad, and it flies fine,, no problems in coffin corner, no problems with overhead, and dear heavens it has line tension to spare!