Robert, I would see if the wings can be adjusted to zero. Of the two aerobatic bipes I have flown ( CG Ultimate Nd Dave Patrick Ultimate ) both of them had the wings at zero with the stab at 2 degrees positive. I am currently building a Reed Falcon and as per the plans it has both wings and stab at zero but engine with 2 degrees up thrust. The common point on all these bipes is the wings are at zero. Before doing any mods I would get comfortable with it and do some CG tests. Pull to a 45 degree up line, roll inverted and see what it does with sticks at nuetral. What your looking for is a gradual arc back towards the ground. If that checks out the see how she tracks on an up line. If she tucks towards the gear and CG is good then yes you would need to reduce the positive incedence in the wings.