I have several of the Walthers, the Athearn thrall and Greenville is compressed the thrall rides high and if lowered is too short. The Athearn straight sill 85' flat is decent I have some of those but would like to see the fish belly version that Trainworx did in N. So even HO has voids that need filled. The Bluford 14 panel hoppers would be welcome as the only HO offering is the Bowser former Stewart models tooling which lacks some detail.