[~KevJ~]

in my experience the small amount of vertical pressure should not bother the servos and the humm in my opinion is probably just because the are digital servos which like to humm when finding centre and have even the tiniest amount of pressure in any direction on them. this is normal. in saying that i would rather be telling you that while im in front of it in person so that i could hear it for myself and view the angle of the pushrod. i say bring it to the field and let us confirm but sounds ok..