Don't know yet, have some diablos midnight's coming from the internet we'll see. I have used the proballs and didn't see much difference
Tippmann 98 custom
17" Stone Cold 2
I had no problems with my stone cold 2
I didn't break a ball all day, I thought they showed up great I could see when I hit some one. Also they are really thick, and I didn't have one ball bounce.
My brother has same set up as mine with a longer barrel and he liked the paintballs as well. NO BROKEN BALLS ALL DAY FOR THE BOTH OF US.
Looking through the bag I did see some odd shaped balls. Also my buddy bought some he has the new E-99 when he put it on full auto he broke balls just as soon as he started firing. He hated his batch. I guess some did curve
I had to buy these because I needed paint for the day and I was glad I got these. I noticed a difference when I traded a hopper of fury's with my brother, I would be shooting accurate with my balls then one of the fury's would curve then I would start shooting the viper's strai ght again. I would recommend these Cheaper on line though. a little better than average. I do not know how good it would be in a full auto just because my buddy had trouble. Try them if your going for good ball for a good price