Roddy at SDI is a very talented fabricator but is very "hush" about his aero mods due to the small group of other similar z cars that try to stay in front of each other when they get together at Southern road courses like, VIR, CMP, Road Atlanta, Roebling, etc. All in good fun of course, but none the less, we all like to be "up there". I for one have been chasing him for years.