Same here. After a while of lots of teeny, tiny "touches" (not pokes) from the tip of the needle, I developed a callous on the tip of my middle finger.

I have tried many, many kinds of thimbles. I have come to the conclusion that I can't use a thinble. They fall off, they make my fingers sweat, and my stitches look terrible. I seem to poke the same place on my left middle finger--the one on the bottom. It seems to be a minute hole and the needle seems to hit it EVERY time. I can't see it, just feel it. This happens every time I hand sew. I think I'm just too fussy. I have tried for hours at a time and just can't get used to a thimble. Poor, Poor, Pitiful Me.
Sue

I use Marian's Magic Quilting Thimble. I love it. I can quilt for hours and no sore fingers. I will say it took me a little while to get the hang if it. I watched a video on using it on YouTube and that helped a lot.