BNSF Empty Coal Train @ Porter

We've moved to the crossing at Porter Jct. to get this Westbound Empty coal train from Michigan who was stopped for problems from the Hotbox detector and kept him sitting for over an hour.
They used BNSF units for these coal trains and this is my 2nd time i've filmed an SD70MAC and this is the first time I see one in the lead. BNSF 8858 & 6207 as a Swoosh GEVO, the 4th time I see one of those units, I which we had more of these here with them leading Intermodals. They will be getting close to Gary as this empty coal train will meet Amtrak #352 will appears to be late.