Pace,
I'm going to just add one thought here to try and get the point across.
Do you agree (assuming our relationship is amicable enough to allow me to ask questions!!) that an aircraft which is not climbing or descending is flying level?
So, we are dealing with an aircraft that is in level flight with full SE power at Vyse (and, let's face it, that's BETTER than some light twins will do!!).
You are then suggesting that the same aircraft, with the same power, will ALSO fly level at some different, higher speed. You initially seemed to indicated you believed this was because the aircraft produced less drag at the higher speed, but now seem to concede this is not the case, so how do you believe this is possible?
Can you, in your Citation, fly at two different level speeds for the same power settings? Don't think so.Why should a twin on one be any different?