What is the fine-grained topic of the following text: I got my first box of Blue Diamond shortly before I got my new OB-1 shaft and combining the two resulted in a LOT of over-spin that is currently beyond my ability to control; I actually scratched trying the position shot below which I hit with only a half tip of side . Only return the topic.
Review of Blue Diamond Chalk and OB-1 Pool Cue Shaft