I am opening a indoor reball field, this winter, and have been experimenting with different markers. So far happy with Azodin Kaos's just have to cut the main spring a little shorter, to get the velocity down to around 200 fps. Also took all the washers out of my Ninja 35/3000 tanks to get the pressure down to 450psi. Also settled on Extreme Rage overdrive hoppers, onlything that feeds reballs reliable other than the spire.
Tippman 98act's go down below 200 fps also and work good, without any modification, but are heavy for the kids.
Turkey Shoot Paintball.ca Home of the largest indoor reball facility in Western Canada