I had one -early kit - pretty plane
They did build up on th heavy side -but th e patterns were all single sequences done in front n center then the plane went to end of field - did a huge split S and came back fo the next maneuver
The momentum carried it thru big loops
these maneuvers wee all done at low angles of attack
stab position really of little consequence at really low angles of attack
Lots of "facts" about stab position for aerobatic models were generated for the last 30 years
most of em - of little value.