Can't use tubes in Weld Wheels Draglites?

The Hoosier are pretty good slick , and alot I know do not run tubes in them. I mount and balance my own tires too. I usually coat the inside of the slicks with Palmolive dish detergent, some guys use Dawn or Murphys oil soap. Very little leakage, if any. The last set I mounted, I didn't screw the beads to the wheel, and they haven't moved. But I am running a Hoosier radial slick at 22 psi.