I purchased some Longoni Blue Diamond chalk from Dgem and the shipment arrived last week as promised. I'm a very good player and have beaten several pro players in tournaments in the 40+ years I've been at this great game of ours. This is the first time I have ever used Blue Diamond chalk and as of now, I will never use anything else. I can't believe how well it adheres to the tip. I used a wizard medium on my playing cue and a white diamond on my BK2. I've played about 20 hours of 9-ball and 10-ball and have not miscued once. I hope no one else in my area reads this as it will assure me of many more victories.:grin::grin: