Dimble in every ball. Thick nasty seam. 1/3 balls were deformed.
Review:
I bought a case of these for around $29.00 for a simple backyard style game. I know my flatline is sensitive to what I run through it, so I wasn't surprised when it chopped about half of the shots when I had it on response. Soon I figured out that is wasn't my flatline. I put my stock A5 barrel on, and tried every mode from semi-auto, to burst, and full auto, but nothing worked. I continuously chopped and the accuracy was horrible.
Conclusion:
Don't buy these if you have an A5. My buddy at the same party as me had an A5 and these sucked face in his gun, too.