I've been thinking of getting a Live Wire since reading about it in the March '04 issue of Fly RC. They used a PJS 550R with the stock 9.6v, 800mAh NiMH battery. They say it flew good, but it only put out 75 watts per lb. I think I'd like a little more performance for a 1 pound plane, so I'll look at different motors. I fly an MP Jet 25-35/20 in my GWS Zero and it works great with a 3 cell poly. Performance really starts to fall off once the plane starts getting above 16 ozs though.