High Dwight glad to meet you. No do not do any slopeing any more as I am a little too gympy in the hills with my wheelchair Was active in Germany during the sixties, in and around Los Angeles during the seventies.
Am however active here in Kingman at our field in aerotow and I use a GP Stearman for tow. Give us a visit and perhaps we can even do some tows.
Here is a link to our website and my contact info is there, give look.
http://kingmanmodelers.net/
John