Thanks for the feedback. What's getting to me is the dealer saying anything other than MIT will "damage" the Spectral. Apparently, this is a subtle form of damage rather than a catastrophic failure. Supposedly, if you use other brands and then send it back to the factory they can tell what you've been doing. Supposedly by detecting this "damage". When I called the factory to see if they agreed with this I was told, "if that's what the dealer says then that's true." This seems very fishy to me.
