So far I’m happy with my selection of yarn. I’ve switched my hook to a 3mm and like the results so far. The hook in the photo is an Addi Swing hook. If you haven’t tried these yet, I highly recommend them. They do take a little getting used to, but they are so much easier on your hands. They remind me a little of a toothbrush handle. I use a pencil hold when I crochet, but I think they would work just as well for the knife hold. They are a bit more expensive as crochet hooks go, but in my opinion, worth every penny.