Just thinking a bit further. If Atlas is trying to do this with minimal capital outlay, which is the low risk way, redesigning these locos to incorporate TMCC is a non-starter. The least expensive way for them to do this is continue using the tooling that incorporates PS3. So that's almost certainly what it's going to be is my guess. That's what the factory or factories are currently doing, so the least expensive way to proceed is PS3 only. Say goodbye to TMCC in Atlas locos would be a good guess too.