Hello,
thank you for all your replies.
Following some further investigations, it looks like the previous own has cut some of the nut grooves too deep, then jacked up the adjustment on the bridge to compensate for fret buzz.
Had a set up done with some repairs done to the nut. Although I think I’ll replace the nut soon.
Buying second hand guitars seems to be like buying a second hand car, it’s totally bemusing why the previous owner did certain changes or adjustments.
I’ll try to get some pics, although the 500kb limit is making it difficult
😀