Bert,

What you really need is the CG range of the wing that your Breezy uses. There have been a variety of wings used over the years so if you could find that out it would be a good start. Mine uses a Cub wing (from Wag Aero plans) and I used the CG range from those plans. Start in the middle of the range and work your way out. I ultimately did the entire test sequence from the EAA manual at both the fore and aft limits. I could have pushed it even farther but there was no need.