I have both the 4-6-0 low boiler with 52in drivers and a 4-4-0 Ma & PA with larger drivers.
Believe it or not the 4-4-0 will out pull the 4-6-0 by far. Both seem to be the same weight.
Any one have the 4-6-0 with 62in drivers to compair to the 4-4-0.??
Bob