Dang....my estimate was off by almost one sixteenth.

I'm flying the older version (at just under 16 lbs) with a G-23, which is no more powerful (perhaps less so) than the G-20 and I'd agree that it flies scale like with that power so a little more engine wouldn't hurt. From what I hear, the DLE-20 is notably stronger than the Zenoah G-20... so it is probably a good choice.