I've been vacillating on the idea of getting my CFI-S certificate for a while now. I'd like to do it just for the challenge and to hopefully improve my skills, and just to say I did it. I hold a PP-ASEL cert now, but am flying under Sport Pilot privileges. Anyway, I put it off, and have gone back and forth several times on whether to even do it. Well, my youngest son (he's 30) has been helping crew for his cousin's balloon, and his cousin's uncle before he had to give it up. He was thinking about a balloon, but decided it's too much hassle for the flying time you get (on this we agree). He was looking at taking flying lessons from the local FBO. I told him I'd get my CFI-S, train him in my plane, and he can decide where to go from there. My own logbook is something I picked up from the FBO back in 1998 or 99 and has no indication of who printed or sold it. I see Spruce and Sporty's sell several different logbooks. Are any of them better or worse for general Sport/Private Pilot use? I very seriously doubt he'll pursue aviation as a career, since it would mean an eye-watering pay cut.