Pointing the gun between you and your wife's feet is NOT as safe direction to uncock a gun. Shocked that you thought it was.
Indeed the device shown in the photo at the bottom is my SSG, internally adjustable only, from my QB78D. I've opted to keep cock-on-close and so access to adjustment is strictly via disassembly, reassembly and testing. Works very well though. Just took more than 15 trial and error adjustments with various springs and lengths and rod lengths before nailing the power/efficiency. That picture isn't the final version - I got some new springs and use a single spring now instead of stacking two. This is the 'final' version (on the same vinyl stool):
I certainly have followed that thread triggertreat, but fail to see how it could apply in a cock-on-close QB78D. The bolt which secures the rear plug to the upper is bang on centre, making access to anything in the centre impossible. In the case of my build this long bolt also secures the rear of the grip frame, a 22xx type which is snuffed against the cylinder with a shaped brass shoe, through which this bolt first passes. Removing that bolt for access to the SSG would necessitate some sort of added device to secure everything else... perhaps something like a large, elaborate barrel band. Not really viable, though obviously it'd be nice to have external adjustment access.
Found this thread on a Russian airgun forum (posted April of 2015). Is this what I think it is? A prod SSG type device?Brass doesn't look threaded to me...no way of adjusting. Which leads me to believe just a spring guide.Link to the page of the thread: http://forum.guns.ru/forummessage/96/803826-52.html