The pictures of misselman posted...that's a NO, NO of an angle to be puting your fingers/hand when adjusting
a needle valve.

Adjust it from the BACK, NOT the SIDE. Meaning stand on your wing if you have to.
It will obviousely prevent you from reaching over to prop, if you're standing behind the engine.

I just don't understand..how people can still want to stand in front of the prop and reach over.

if anyone is stupid enough to adjust the LSN while the engine is running...i don't know what to tell them.
I mean...if you have a super long miniture flathead screwdriver , it would be possiable.
But how precise can you tune it when the engine is vibrating anyway.

I mean you spent hours and hours bulding or putting a model togehter...even an ARF...then you're going get in a hurry
when it comes to your hands or fingers.