Did anybody match the Box's advertiseed weight of 7-1/2 lb's? Mine weighs 7 lb's 15 oz's with a empty tank, but I have the old model which does not have metal pushrods in sleeves like the current plane, but instead uses pushrods which I modded and used 4-40 ends, and a carbon pushrod for the rudder so there is no slop. I hope the little extra weight does not bother it. It ballances right at the 90MM like the manual says. Is that also where you guys found it to really fly the best? This started out as a swap meet $50.00 plane.