I tried the White Diamond for a while. It was better than the tip it replaced. I wanted to love it, but I felt like I had less control, and I couldn't get into the feel of the hit. I recently switched it out to a Bulletproof tip, and I am loving it. To each his own just like the playing tips.
I feel like the white diamond has as much control on the hit as the best ones out there, Samsara, and whatever Predator uses on the BK Rush. When I hit with a few cues with the bulletproof tips I was not a fan, they had a harder hit, felt closer to the phenolic plastic ones than the hard leather or the white diamond. The hit is softer with the other tips, so I can see people that like a harder stiff hit on the break not liking them as much as a bulletpoof one.