This was kinda my question to, as I was wanting one to put on a register for range trips during the winter, but then go back to NR and deregister in early spring. I know TV-Press-Pass does this currently and so do others. As far as I am concerned there is no worry so long as responsible owners do there part, which we do so long as we are properly informed about the regs that affect us... but responsible owners didn't stop the problems with the CZ or SA.