Exotics C721 Driver Weights

My C721 Driver came with a 18 gram weight for some reason. I didn’t discover initially because I assumed it was a 10 gram as I was informed it would be. After playing with the driver a few rounds I did check the weight and discovered it was a 18 gram. I was disappointed to learn that I would need to purchase a 10 gram. All the information provided by Tour Edge was that the 5, 15 and 18 gram weights could be purchased together in a kit. But the 10 gram only individually. I went through with the purchase and like the 10 gram weight much better.