I am returning to pool after many years. I am looking to buy a jointed cue but I see that in cues there are a large variety of sizes and types of joints offered. I wonder if some of you could give me a discussion about joint choice. Are the differences cosmetic only or do they effect how the cue plays? If one is looking at a separate shaft like the OB-1, 314-2, or Z2 which joints are preferable?