Of course, Plan B is to just bring him down and let him drive...
Actually, I'm not kidding. Christy Copeman's son showed up at the Fontana AX last year with no track experience and only ONE DAY of any stick shift experience driving an older 911 with a fairly tricky clutch and what seemed to be very little (or no?) power steering assist. At the end of the day, he won his class in that car.

Yes, he stalled it a few times, but that alone isn't going to break the clutch.
Our AX's usually don't involve a lot of downshifting - sometimes none, and especially for a new driver, most of the track can be done while staying in 2nd gear in a 993 (with
maybe a third-gear section or two if he is picking things up quickly).
I would suggest having him:
1) Register him for the next Performance Driving School (registrations must be mailed in
ON October 12th - no earlier, no later - check the SDR main web site and the forum for announcements). Or see this link for the announcement and registration form:
http://www.pcasdr.org/img/2007/Calendar/DSchool/2007_Fall_Dr-Sch_Ad.pdf.
2) Come to the October 13th AX this Saturday and drive it with one of our instructors. I highly encourage new drivers to do an AX or two before doing the PDS - you will get a lot more out of it if you have had a day or two on the track first.
3) If you can find a less-expensive Porsche for the PDS, maybe use that - otherwise, if he isn't doing badly at the AX... well, there aren't a lot of downshifts at the PDS, either.
I concur on the "get someone else to teach him" - no matter how good a teacher you might be, kids seem to listen better and learn faster from someone other than their parents. (Ask me how I know.)
