Here's mine.
I don't have nearly the shot count thru mine that you do. Also, I only shoot offhand at about a 19 yard indoor range. Being my fist air gun, I was amazed at the accuracy. Much like my powder burning weapons. Dime sized groups, 10 shot with the H&N, Sniper Magnum, 17.90 gr. pellets. Of the three different pellets I bought, these are by far the best, at this short range anyway. I have not tried the JSB's but will shortly. It doesn't seem to like lighter (12 and 14gr.) pellets very much. Their accuracy is...ok. Not as good as the heavier versions.
While overall...I liked the feel of the stock, the original stock has some odd things that I didn't like, and set out to fix the problems. In all, I made a few alterations until it felt good in both hands at my shoulder. Then it got covered in Krylon Truck Bed coating. While slightly rough, it's a hard coating, not sticky or rubbery feeling at all. I'm not hard on it at all, so I don't know how well it would hold up in the field. But...it IS truck bed coating..!
I've had a couple of different sighting systems on it. Tree different red dot's, and one scope. Even though this EOTECH 512 is hard to see cleanly with my old eyes, it gives me the best aim point, and hole size in the targets.
Mike
P.s. - Mine's also a .22.