Casey 1988
Shun the frumious Bandersnatch!
I've never heard of a 40 mold, is it like a fastback?
I've got a 120 Yikun dog disc that I practice touch shots with, can finesse it maybe 250 FH. If it's anything at all in that class of disc that would take some serious snap.
It is a mold made by Wham-O/DTW and is slow deep catch disc, almost the same mold as a Wham-O regular mold would be now from Discovering The World site.