Hi Bill,
I'm not sure where that other notification came from. Possibly it's from a local R/C club that has some Cholla chopper members also.
Traditionally at the Karl Marchinke Memorial, (what was previously just called the Cholla Choppers Fall Contest) that goes back over 30 years, Classic and Old Time have always been on Saturday and PAMPA on Sunday.
I'm sure the latest version from John Callentine is the correct one. The other one was probably just a courtesy advertisement from a local R/C club.
Looking forward to seeing you again.
Randy Cuberly