Yes with an empty fuel tank it balanced slightly nose heavy,3 inches from the LE in the middle of the wing spar . How do I check tail surface incedence and should I also Check the wing incedence ? To much up thrust can cause a nose heavy condition ? Still dripping behind the ears so all your suggestions are greatly appreciated .I hope to get the 4* problem fixed without augering in first , it seems like it will be fun to fly !