wow, thank you Jeremy for all the great info.

I recently got a simple kwikset bump key and got it to work a few times on my front door. I stopped doing it though because I thought I would look suspicious messing around with it after a while so I bought a cheap deadbolt to practice on. The series 99 door has a really strong construction and must have been expensive. For a bump key should i get the sc-4? I have this idea that each different manufacturer has a different cut code for their key, should I try to make one myself or go ask my local lockie? I don't know him personaly but have done business with him before.
Thanks to everyone for all the helpful info so far.
(I don't think my Dad will let me try to fix his door because I might screw it up, I don't blame him.)