SR71 - "If the logic had traded the GS profile for speed, the hole in the ground would presumably have been that much further from the threshold."
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L/D speed is closer to Vref than it is to stall speed. Giving up on the GS to maintain speed increases your gliding distance.
Staying on GS appears to be better, until you run out of airspeed and the plane's glide ratio can approach zero. That's when the guy that stayed closer to L/D flies farther.
The pushover to maintain Vref is a lot more uncomfortable than the choice to slow while staying on the GS. That is, until the sink rate starts. At that point it will be apparent that the guy maintaining Vref is still in control, while the guy that sacrificed airspeed to maintain GS is just along for the ride.
Try both scenarios in a sim. Don't give yourself enough energy to make the runway. Figure out which one scares you more(both gave you a full shot of adrenaline). Whichever scares you more is the one to avoid. It will be obvious.
