Well finished mine totally out. It came out to 10 lbs with a OS 4 stroke. I did have to add a 2 oz spinner hub to it for it to balance out. I also took off the wheels pants so that I will not bust them up on the first few flight like I did with my other Gee Bee. After I put them back on I probably will be around 10.5 lbs. I hope to fly it within the next week. It has been very windy the past week, 15-20 mph winds.