Their website doesn't seem to be in agreement with what you were told. Here is an excerpt taken directly from their web page:I did check with gear venders and there unit is for running empty not for towing. I was very surprised when they told me this.
the air bags is needed for my lance 1030.I put it on first due to a back order issue and it squated down to only 1.5 in. of room between the axle and bump stop. my toy hauler is 3750lbs. hitch weight and the air bags keep the head lights level.