Skycraft Design
P.O. Box 67
West Trenton NJ 08628

They are notorious for not responding. They have a phone number if you want to
chase it.

The STC a friend purchased from him/them for an older plane
is....kindly....extremely poor, but it does give one the "license" to install
the leading edge lights for that plane and...inadvertently, make the
corrections which does it the right way.

Neal