it appears that with full configuration and no air/ground logic telling the spoilers the plane is on the ground, there is NO WAY to get spoilers.
I understand that in config 3, one can at least deploy speedbrakes (inflight spoilers if you will) and get the plane to be heavier on the wheels to trigger ground spoilers.
it has been mentioned that TAM requires CONFIG FULL for landing at this airport.
regarding ducking the glide slope. there is an old joke at midway...after a plane goes off the end, the rest of the pilots say...he followed the glide slope.
the fact that the pilot flying called for glide slope inhibit meant he knew he was going into a short field and wanted everything HE KNEW TO BE TRUE to be on his side.
while there may be a ton of data saying this is wrong, it is still done and it is not done as much at airports with very, very long runways.
regarding which do you want first, spoilers or reverse...spoilers should be out before you can get into reverse just as a matter of speed of the spoiler mechanism. also, many planes, not all, require the nose wheel to be on the ground prior to having pilot select reverse.