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WHen the coils are well done prior tuning pin insertion, no much force is needed, and in any case the coils with be tightened and tapped later. A good handle is a must.

Hey Ed Foote!

I'd love to see a photo of your modified vicegrips. And I remember one of your other postings, you twist the coil in a clockwise or counter clockwise direction?

I got no picture,but it is a simple thing. I used a grinding ball on the Dremel to make the jaws have a slight concavity to them where they meet. This keeps them wrapped around the coil more securely than if I were grabbing the round coil with flat surfaces. I set the adjustment so that the jaws are just short of locking on a firm grip, mash the becket as flat as possible, and then I twist the coil in a counterclockwise direction, massaging the string along its length of the coil. This moves some of the slack from farther up in the coil and seems to let the string settle. It is normal to see pitch drop 150 cents when this is done after the first two chippings.

I have also ground the jaws down to be smaller for reaching in tighter places.
Regards,

Not to try to look different, but I hardly experienced any large drop when massaging the coils that way. But I tried after reinserting the becket and tapping the coils. And after 3 chippings/Tunings

If done before may be it shows the drop some stated to me.

I have also tried once after mounting a new string, without much drop too, a little, indeed, so I will adopt the technique..

I have yet a freshliy stringed vertical to tests...