when did the first JK Aviars come out?
i recently acquired a 2001 PDGA National Doubles stamp Aviar-X. would you expect it to be essentially the same as my 3x JK Aviars...?
Sorry, I don't know exactly when the JK first came out, but after Juliana won 3 World's, and before she won 4. That should narrow it down.
The mold is identical. The plastic only varies with the stiffness. Some are softer, and some are stiffer. None are as stiff as a regular A&P, usually, and none are as soft as a SS, usually.