just checked and there is no gap.
i loosened the master cylinder and slid it toward the center of the bar, then i removed the bolts completely, found the switch spring looking at me. i can see the plastic tip is missing. confirmed.. its the switch. i now have the concept on how the switch works.
just for s&g i put the master cylinder back on the bar and started the bolts, tighten the bolts just enough for the master cylinder to slide. i squeezed the brake lever then slid the master cylinder to the switch, tighten the bolts then released the lever. this seemed to work but missing part of the switch maybe giving me a false impression. think i will do the paper idea when i get a new switch............dan