Adjustable pinion snubbers?

If you have a 4speed with some tq and hp with stock springs you will learn real quick about axle wind up !!!
A pinion snubber does help with that .

I have heard both sides of the opinion many times .
One of the most respected opinions I listen to is my neighbor .
He is an x super stock racer in his 70's now .
He said he always used them but not to put them too close to the floor or it will drive the car.
I know he was running in the low 11's high 10's in the early 70's .
I respect his opinion !!!