Hi. I'm Tim Gillespie with Access Control Enterprises in Orange, CA (just south of Disneyland). I've been a locksmith and safeman for 37 years. I'm sorry that it took me so long to join; it was one of those things I was always going to do and never got around to. Anyone can reach me at 714.936.8650. Or, try Tim@accesscontrolenterprises.com. I am pretty well rounded in newer and older units, so give me a holler if you need a hand, and I'll help if I can.