I started flying with one of my sons, who got bit by the bug at a LUNAR launch with the cub scouts when he was 9. We flew black powder for a couple of launches, but he really (really, really, really) wanted to fly one of the mid-power birds that can fly at Moffett Field (G motors/under 1000'). So we got an Aerotech Initiator and let that one rip on F's at Moffett. And then (this was my mistake) we went to fly it at the LUNAR launch at Snow Ranch. It was overcast that December morning, and we were able to fly the Initiator on F's to where the rocket just kissed the cloud cover, disappearing for just a second and then reappearing right at deployment. But when the skies cleared and the big boys started flying...well, it was over in a second.
We built a Darkstar Junior that winter and flew that for L1 on an H/motor deploy, then added a Raven and started flying dual deploy on H's and I's, and then a year later flew the same bird on a J to 5700 feet at October Skies to pick up the L2 certification. We now have a 3" Darkstar and fly that on J's, and for now I think we are done accumulating the high power birds. I am directing his energies back into projects he can build and fly himself, so that he's flying his rockets, not mine. But he's not happy just buying 3FNC kits and building them, so he's gotten into scratch building, kit bashing, card stock projects, and the like. Junior L1 is definitely in the future for him.
And along the way, if/when I pick up another high power project for myself, I'll probably try to do something that is technically challenging to build and fly, maybe a clustered project where we can experiment with air starts on L1 and mid-power motors, and keep the flying costs reasonable.