I had the POG 1 through POG 4.5. I traded the POG 2, and sold all of my POG 4's and 4.5's. I only kept the single green-striped versions because I really liked the simple cosmetics.
By the way, I felt the POG 3.5 played similar to the POG 4 and 4.5.
I still have my POG 4.5 full cover autographed by Michael Chang with "Jesus Loves You" and signature, that I might list for sale, soon.
Thanks for posting this thread. Great info.