G day Dave, welcome to the Cocobolo club, My 35th anniversary coco GS gets better every time I play it. I don't baby it anymore and take it to gigs and even open mics now.
I don't just let anyone play it, but have heard it from the back of the room a couple of times.
Everytime I lend it, the expression on the players face when they start digging in is priceless.
I agree with Gutch they just get better.
Enjoy mate.