Its not necessary. I only do range checks when I'm installing a new rx or transferring one from one plane to another. But it doesn't take very long to walk off 50-75 paces. Probably good practice, but at least for me anyway, I cant remember the last time I range checked.
Do you have the new version of the HZSC with the Spektrum Rx? or the original 27mhZ version? Perhaps with the latter, it would be a good idea cause you have the potential to get outside interference as in: " Breaker, Breaker good buddy! See any smokies ?"