I bought 1000 balls for 15$ for the first day I went out paintballing at an actual field with my new Spyder. Out of the box my spyder was shooting 325PSI so they cut my spring (too short) so my marker was shooting 225PSI. I played a round like that then some one lended me a longer spring and I got my marker up to the 285PSI limit and the paint worked much better and grouped better.
Conclusion:
Great paint that is cheap and consistent what more is there to ask for?