I had a similar situation right after I got my first Ion in my Wednesday night mini. The old man who runs it/plays it every week is watching me get some putts up before the round and comes over...
Pops: "You ain't thinkin' 'bout using that thing tonight are you? I know we ain't sanctioned but I still go by the rules."
Me: Silently points to the PDGA Approved tooling on the underside of the disc (before the tooling was on the overmold on the newer Ion runs)
Pops: "God damn... I'm getting too old for this shit. Nice puttin' son."
That conversation almost word for word. Classic.

