Seems the last 4 people are all looking for a meeting, and recently. If there is no meeting near you this would be a good networking opportunity for all four of you to meet up somewhere for lunch, bring some locks and have fun!
If you prefer something more established, and don't mind driving to Baltimore, there should be a TOOOL meeting there:
http://toool.us/meetings.htmlAnother resource for like minded people who may be interested in locksport is your local 2600 or DC meeting.
Let me know if I can help get you in touch with the TOOOL Baltimore folks.
Squelchtone