If you haven't seen a main tank pump light on landing, you haven't been looking at the overhead panel. They flash even with 6K or more.
Guppy, You've completely missed the point of my post. It's not about the lights coming on - which I have never seen come on with 6K, so I don't know what you're talking about - but rather, not cutting it close enough where you're landing with them on once a month (or any time, for that matter.) there are simply way too many variables that could really line up to give you a bad day when you're landing with that kind of fuel. And it has been rewritten in history many, many times, usually with bad results.
The lights come on with 2K per tank, giving you 4K total. Anyone landing with that fuel amount should have declared min fuel, as you have between 30-45mins left ON A GOOD DAY! Now throw in a scenario where the runway is shut down as you're on final. Who wants to be on a go around verifying the accuracy of the fuel gauges with that little left??? Not me.
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