To used2flyboeing,
Yes, you're correct about the magnetic sensors etc, near/far, all that crap....BUT...it doesn't make an ounce of difference if you touch softly, or dump it down. The sensors are set into ground mode, or air mode, when the torsion links on the gears compress or extend. There is no thinking in the system, either it is on the ground or not. On the B737Ng, there are 2 sensors on each gear, and between them they work out if the aircraft is still in the air, on the ground or back in the air etc. All the sensors go to the PSEU to be sorted out.Depending on the combination of gears that are compressed/extended, as to what it allows to happen with the anti skid/aquaplaing and so on protection.