we (1086) uses 4 8" stroke 3/4" or 1" bore(im not sure) pistons to launch the ball. we can launch the ball around 10' in the air and a pretty far distance as well (like over our overpass from our opponents side of the field
). it just took some time to find the right hight for the launcher and the right angle for the piston mounts. it is deffinetly very effective.
you can check us out this weekend at VCU!!