I, too, have fat fingers. I usually use The Nimble Thimble, mainly because it has a slot at the top that my nail will go through. The medium is tight, but the large is too big, so I usually take a finger cot (check the pharmacy near the band aids) and put it on first. I also use the leather dots. I use a magnifying OTT light when appliqueing, so just stick it on the edge of the magnifying lens when not sewing.