Hi again, Just wanted to let everyone know that I've moved the battery up against the firewall below the fuel tank,and again checked the balance of the plane, by doing this it reduced the nose weight from 9 oz down to about 4 oz of weight I will have to add.I feel this is a safe amount I will have to add. I could move the engine farther forward on the motor mount, but feel this is not necessary for only 4 oz of weight difference. I will put on a alum. nose cone instead of a alum. nut, and I could add 2oz prop weight, to the engine. Thank you All for the advice, it made a difference, This is what makes R/C universe what it is with so many nice people like yourselfs helping other people. Thanks again