Brodhead Pietenpol Association

Hi
My question is concerning the support of these ribs.
One has support pieces added near the trailing
Section while the other does not. Is it recommended
All the ribs have support there or not necessary?
About half the ribs have it so I could add it to the rest.
Was also thinking of alternating it though out the wing.

The lower rib in the picture is for the ailerons.
The extra supports are for the spars that make up the hinge area for the ailerons.
The upper rib is the standard rib for the rest of the wing.
The plans show where the two types go.

Ahh Thanks