Hi Pike Bishop.
Don't no details of what you have but there is a stock biplane arrangement the provides all around excellent performance.
These angles are in relation to the line of flight and assume acrobatic ability is desired.
Top wing one degree positive
Lower wing zero degrees
Horizontal tail three degrees positive
If stagger is oresent, balance on a line connecting upper and
lower centers of lift.
Force arrangement works!
Need more info contact me on E-Mail
Good luck!

Hal [email protected]