Using our new dump card now for a few times - I have to say that I liked the old one a lot better.
No, not because I like to dump 30000 lb of construction trash, but with the new card it takes so much longer at the dump. I don't know how measring was done with the old card, but we showed the card when coming in, left our trash and drove out - there could not have been any measuring. Now, after emptying the car, we have to drive back on the scale to determine the weight we left. As there is only one scale, not only we have to wait, but all the other cars waiting in line on the way in, also have to wait, until we are done.
There is definitely room for improvement, as I think, that only very few SUVs will pack more than 500 lb in the back. There should be some 'obvious-less-than-500-lb' determination when entering, so that we could leave without the second jump on the scale.