I had been using my newer Clover Amour crochet hook to make the little granny squares (and attach them to my blanket) since my major vision issues began. I do like the hook itself, but the way I hold it is like a pencil, and that rubberized grip has really been irritating my skin on the left side of my hand where it rests between my thumb and finger.
I dug down in my bag and picked up my old Susan Bates hook. And it just seemed like it was sharper than I remembered at the hook. So then I went and pulled out all of my crochet hooks and realized I actually have three size F (US) Susan Bates hooks: the one I was using with the sharp edged hook, a second one that is a little more satin finished (so the yarn drags a bit on it), and a third which is shiny and slippery and with an edge to the hook that is sharp but not cutting/catching/splitting the yarn (pictured in the photo above). It is just right. I feel like Goldilocks and the Three Bears.
So I’m back to making some more little granny squares since I’d almost run out of the ones I had ready to add to my blanket. The right tool makes a world of difference.