Yo Sacredanarchy, thanks for your effort for working on the upgrade of the mini trains version 2.0. I understand that the programmers have their hands full on the base game after its new 2.0 release, less than a week ago. With all the improvements that need to be incorporated in the base game. You probably also have your hands full as you need to take your time to reprogram the mod.
Anyways, if it is not too much asked, could you make it feasible to fuel the train with 2 slots/boxes for fuel. In the 1.1 version there is only 1 slot. Sometimes I change my fuel type from e.g. coal to solid fuel. In the transition period the train does not get fuelled with new source, as there is another fuel type. Subsequently the train runs out of fuel.