Yup, at 10.5k the 2+ went straight to 450, and would also do it at the 12.5k MTOW. Again, the book says 28 minutes at ISA for a sea level takeoff.

Yes, the MMo for the CJ2+/3 is .737 with the refined CJ wing...which it will constantly hit at FL450 in the CRZ detent. In exchange for that lower max speed, you get superior fuel burn, range and TOL field length numbers.

The Premier 1A has a vastly superior cabin to the CJ family...but what good is .80M if you have to take any amount of payload any amount of distance?

I'm really anticipating the Premier II's arrival, and I do hope they stretch it to compete against the CJ4. With all its current attributes, a 17'+ cabin and enough fuel for at least 1700nm would be GREAT.