I do agree with mister Chen. The White diamond tips are the best tips in the world for breaking, if you'ld ask me.
I use WD tips as standard tips for my break cues, break/jump cues and jump cues. And I've mounted about 150 of them in the past three years on my shafts and my customer's.
When you use the tips in combination with a hard ferrule, you have the most perfect material for breaking. Many cheap break cues are being tranformed into monster breakers by just changing the ferrule and mounting a WD Tip.
Just contact Joe Picone and ask him to send you one as a sample...