Airbum - I agree with your line of thinking. UPS is heading toward an all widebody fleet. More pay across the board would be great.

As far as arguing against the traditional pay scale, UPS is unlike legacy carriers. The most senior guys are not necessarily on our largest equipment. There are 138 747-400 captains in ANC. If pay is based on equipment, that is a small number to earn the highest scale (let's be honest, how much higher would it be for those guys). Rising tide lifts all boats.

What would the groups be?
747/MD11
767/A300
757

So the question for Delta pilots, would you fly the 747/777 and it's long legs if it were not for the money, or would you cruise around in a 737? It would be interesting to poll your pilot group and find out why they fly the aircraft their on. Money or QOL. Those usually don't go hand in hand at a legacy with tiered payscales.