Quoted from vid1900:If the switch you have is low voltage, arcing is less of a worry, but closing the switch in the last 1/8" of movement should be fine.
An EM trick someone told me might apply here as well. If you have it close before the full range of movement, say 1/8" before, then the last 1/8" of movement actually gives a tiny bit of lateral motion between the two pads, and acts as a scraping/sanding motion that keeps the contacts clean.
Someone correct me if that is wrong or some kind of myth tho, lol. 
Westjordan, UT
