My location does not allow dropping the trailer on the scales, but it is not necessary at all.
I first tell the clerk that I am going to make 3 weighings.
I weigh the rig "road ready" with equalizers set for travel.
I weigh the rig with the equalizer chains loose.
I drop the trailer away from the scales and weigh the TV alone.
The CAT scales give an axle by axle reading. From these 3 weighings, I can learn all I need to know about axle and hitch loadings and the effect of the equalizer bars.
John W. Irwin
2005 Classic 28 "Sabre-Dog III"
2013 Silverado 2500HD Duramax/Allison LTZ
WBCCI #9632, TAC TX-10