My friends used these all the time so I finally broke down a little over 6 months ago and bought a case. Great balls but they are small so you need a .687 or .685 depending on the batch of paint. Dead on accuracy and excellent marking. Sometimes the paint is extremely gooey if you get a real good batch. I nor my friends have ever had a barrel break with any xball paint. The only bad thing we had happen was we ran into a batch that the when shells broke they broke into shattered looking pieces. Not a big deal---Unless you get hit in the neck or hand. The paintballs still worked great it was just an unusual thing that created an unusual sting.
Conclusion:
We used these until last month when our supplier couldn't get them from National Paintball anymore. If that wouldn't have happened we would still be using them.
