That's the first ball python that I've seen over 20 years old! About 25 years ago the very first ball python morph came into existence (Albino). Too bad that guy can't talk!
I'm not too sure that's a normal ball python, the pattern seems to be really reduced. 25 years ago that would have been a very interesting snake to prove out, could have been worth some big money back then when things were just starting. Back then babies were selling for $25,000 a pop for any co-dom morph! It almost looks like an Enchi to me.
As far as body condition I'd say he/she is a bit on the thin side compared to my snakes. My seven year old females are in the 3500 gram range. I'd say either maintain or increase the feeding a little bit. It still looks like a healthy weight, especially for such an old snake!
Here's a photo of a five year old Enchi for comparison, the reduce pattern looks very similar to what you have.
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