Col,

wow... the differences are really impressive and do exist; I would say that I liked the Adam more than the Yamaha, but I am not sure when each exactly begins.
Do you remember (more or less) when you switched settings?
Also, did you go trough the entire series for both songs?
Thanks (I don't want to give you much trouble, so now I am going to listen again, trying to detect the timing of the transitions).