a really strong spiral goes about 75 yards, so that distance should be enforced as minimum. water bottles or frisbees or other such things should probably be p

a really strong spiral goes about 75 yards, so that distance should be enforced as minimum. water bottles or frisbees or other such things should probably be prohibited. a decent seasrch for rocks loose concrete or hardware should be made of the venue. pocket drones should be way out of bounds, lasers or flash photo equipment that makes it akward to appear on camera , as well.