RE: question on airplane balance
All of the Extra's that I have had tuck to the gear in knife edge even with the CG set a tad forward. CGis one of those pwersonal preference things. This one sounds pretty close to being nuetral. The only downside is that it may end up being more pilot workload in a breeze. What I would do is carefully measure the stab and elevators to see if there is in fact downward deflection of the elevators or have then just been centered. Then the coice has to be made on weather to move the CG forward or to leave it alone. IMO that would depend on what type of flying is to be done. If you plan to fly IMAC the I would move it forward about .5" or so. If you are going to sport 3D fly then I would leave it alone and simply adjust the stab incedence so it flys with no visible elevator trim. If the tuck to the gear is excessive moving the CG forward will help but I have never seen it completly cure the tucking. I usually have to employ a mix for that one.