I've never been concerned about the dry weight. I only look at GVWR on the sticker to make sure it's under my towing weight limit. Then I take unit to scale and find out where I'm starting from.
When loaded for 1st trip out, I run truck and trailer over the scale to find all my weights. I've never been up against max limits. I prefer having having a cushion for better towing performance from my truck.
When I( purchased my last 5vr, the weights listed on sticker in cabinet were very close to scale weights, even showing weights for full water tank and propane tanks.
