You'll all be happy to know I retract my statement. Drive train loss is not a constant. Don't know what I was thinking because as I sat at work trying to prove myself right I kept thinking to my self "well now thats not right" and "well now neither is that damn it".
I concede.
Damn I was hoping to see a good case put forth. I know the majority of those who believe it is a constant are highly eductated and make good points. I respect you conciding though. It's one of the things in life I have yet to master. I'm to stubborn for my own good.
However.... I don't think you were entirely wrong. It CAN'T be a fixed percentage. It could be an exponential equation....