Originally Posted by Second Life
If ECO and MDS isn't the same thing... How come when you're on ERS you will never see the ECO light up?
The same holds true in Tow/Haul. The algorithm does not consider Tow/Haul or ERS mod as an acceptable criteria. IMO, that's a programming booboo. Not everyone is using ERS in a non-economical fashion, and Tow/Haul does not mean Guzzle and Waste. It also appears that the MDS mode uses the existence of the ECO light as part of it's criteria. I call this 'lazy programming'. Why write truly valid code if you can simply test for the existence of something else that you 'believe' is an acceptable criteria source.
The good side - if you don't have a programmer, at least you have a couple of different ways of turning the MDS off.