Ehh. I'm still kinda new.

They work fine w/o the wheels.

No buzzing in both tests.

I just don't get what you mean by 'vertical alignment problems'.

My servo arms/wheels are in line with the control horn ie I use a ruler and put one end on one side of the control horn and put the other end on one side of the servo wheel. The ruler is perpendicular to the trailing edge.

But I don't know what vertical alignment problems are.