Maybe I'm missing something here, but doesn't Tripoli's Junior Certification Program pale in comparison to NAR's?? Tripoli's allows Jr members to fly F & G motors with supervision (last I checked folks under 18 could buy F motors in most of the US anyway) where NAR's allows them to fly H & I motors, with the junior certification transferring to a L1 cert as soon as they turn 18. Doesn't NAR's allow for a lot more?
Granted, I think both of these will help- I would have died to participate in the NAR's current program before I turned 18 & got certified.
David Tietz NAR 65139 TRA 5150 L2