Re: the colorful Combat Radius diagram.
The advantage of computing this out of Denver is you have 5300 feet less of thick air to climb thru than from a sea level aerodrome.
Better option as far as seeing the girlfriend on the weekend, if one plans properly.
Buckley turns are usually pretty good also. (At least they used to be.)
(A good accountant can make the numbers say anything they want. ABQ would have been even better.)