I love my new 651 snubbie, but my thumb gets small cuts when I try to cock it for single action shots. The cuts are enough to cause discomfort and sometime a little bleeding after a while. I get cut by the inside edges of the hammer shroud walls. Some of the skin on my thumb bulges into the channel where the hammer travels and gets cut by the inside edges of the channel. It would be nice if the inside edges were rounded a little like the outer edges to be more thumbprint friendly.