Tom,
You do have open end tubes on the bottom of that rig. You could "T" off of them and add a bit of tubing to gain a wider base for better stability.
A thought.
Brodak's P-40's are no longer. I admire yours.
All your models look like they are in great shape! Perfect in fact. Photoshop? Just kidding.
Do you build out of the box or make changes?
You certainly have experience with ARF's.
I did my first ARF with a Brodak Pathfinder. Built it right out of the box.
I never even looked at the bellcrank.
Only change was I tossed the tri-gear for two gear bent aluminum. Also from Brodak's.
Stab wobbles a bit because of the fuselage.
I may do the Dennis Toth stiffening thing to it.
So, of all the ARF's you have put together, which one did you like the best?
And why.
Charles