I know that M-T already released a Mopac version (MP 838201), but here's MP 838137 with "twin 45" designation that's not on the M-T car. A reprint of a different Mopac number with the "twin 45" added would be great for us Mopac modelers. I would definitely go for a runner pack of Trailer Train yellow flats, pre-TTX scheme. I emailed M-T with my suggestion and received a reply from Ben Thieleman the next day. M-T did release two suggestions I've submitted in the past, so I encourage others to send them in too.