Coyote... double check
Just to cross check:
Surely:
( rate of ) Momentum change (see Newton's Laws) gives the same thrust whether it's a high disc loading or a small one..... the difference being that with the smaller area of a high disc loading a greater flow rate is required (since the area is small a taller column of air is required to move per time to acheive the same momentum change - ie a greater Ind Flow)
The greater Ind Flow with a smaller disc (higher disc loading) just requires more POWER ....
?