Quoted from pinball_keefer:
It's a little hard to keep up with this thread, but all 3 games actually include the Coma rule; the Coma lockup is a choreography device that exists only on the CE.
As far as rules, I think the only thing that is really missing on any model is the Power Chord rule on the SE because there's simply no way to make it happen as intended without a lockup. The other stuff on the upper playfield (Duff, Lights, and virtual locks) are simply awarded off the left ramp.
Thank. I almost had a heart attack thinking that cool mode was only on the CE.