Da,

I guess what we refer to as "boost tabs" are considered to be balance tabs.
The only article I have ever seen that had any reference to the setup and sizing is the one I posted before.

L = 1/3 to 1/2 of the span of the control surface
C= 15 to 25% of the chord of the control surface
This area can be up to 10% of the control surface but not less than 4%.