Lee, be kind do us G motor fans. Having been behind many in my earlier life, they were great. Your Williams is a very good model. I am sure John tricked it out. The Williams G will run on 0-42. I have many converted to DCS and several that will be at some time.
I was at the last run of the GG-1 and saw many a grown man with tears in his eyes.
I grew up living in Pennsylvania as a kid and would spend hours trackside watching the GG-1 fly by at very high speed. Those days are what made me want operating catenary on a model layout.