The blanking doesn't cause an oscillation, it just makes the elevator feel less responsive, since they're not "grabbing" the air as effectively. I notice it on the Freewing 80mm F-5, also. Just don't set your flaps past the point where their TE is lower than the LE of your full flying stab.
I insert a credit card between the stab and fuse as I'm tightening the collar. This helps preserve the gap between the stab and fuse so they don't touch.
I insert a credit card between the stab and fuse as I'm tightening the collar. This helps preserve the gap between the stab and fuse so they don't touch.
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