I know what you mean...A lot of us find the factory aiming a bit too low so we adjust it a bit higher to our preference.
Yes Yes Yes. This is exactly what I'm experiencing. I will follow your way of drilling two holes on each side of the knob. Thanks for uploading the pic and your advices.
This is what I did. Totally forgot I had broken off the entire shaft on one side. So I drilled two holes that would fit my needle nose pliers, then I could turn it.