Ed, I have flown the plane many times now. It has all the performance I could ask for and then some. I wish I could have flown the plane in calm air but it's been very windy and cold here so far. I will not stop flying with the OS .91 because I have three of them with three SPA [planes and one being built this winter. I have thoroughly enjoyed the electric experiment (thanks to your great advice) In the right hands this electric Dirty Birdy could place very well. I also have several other electric planes both large and small I fly for fun with the same batteries I use on the DB so it has been a worthwhile investment.