Michel,

At present I'm not so concerned about reed switch bounce (although that may become a later issue) since the jumping to the next set of operations in the PIC program behavior occurs without switch activation, before the magnet gets anywhere near it. That is why I suspect some sort of EMF is being picked up by the switch leads which run the length of the track above.

I am aware however that there may be several things acting here so I am willing to give all theories consideration.