Quote Originally Posted by benchstop View Post
Where to begin.... A barrel that went through the breech block, rather than stuck on top.
Decent metal open sights.
A sturdy pivot bolt, rather than the cheaper pin.
Shims on breech block to prevent marking.
Dovetails cut to a decent length and depth, rather than just scratched into the cylinder.
A fully adjustable two stage trigger, with a blade that doesn't flex.
Better quality piston.
Deep blued finish, rather than paint.

Have I missed anything?

I'd love to see the meteor, mercury and airsporter relaunched, and built to the same standard of HW or Air Arms offerings.
You've obviously never seen a later Mercury or S version, they have bluing and breech bolts, the S has metal open sights and metal fake two stage trigger blade, the pistons are pretty well made, just let down by the buffer washer set up, I can't say I've ever had a problem with the scope grooves once you have proper fitting mounts, so most of your list was improved upon, still not to HW/AA quality but much better than the earlier versions.