Posted 10 June 2011 - 11:39 PM
Too small of a pic to make out detail. But for a cocker that works and is actually timed right (90+% of sold cockers are sold cause the owner fails to know how to time it, says the gun is broke, when they really just need to learn to open a manual) that is a great price. I see the WGP ergo reg, solid reg, PITA to rebuild, but solid. Drop forwards are so 6 years ago, but if you like it, use it. That is the normal dual hinge trigger on later model cockers. They are ok. You can tweak em a bit to loose some of the extra over travel. I can;t make out the pneumatics here honestly, but if he says they are STO, that is a good thing. Standard Tournament Option...that was considered the high end of WGP cockers back in the day.
I concur with your idea, DO NOT fiddle with it until you understand how it works. 99% of cocker problems are user error. Someone trying to mess with the timing when they know nothing. Their big mistake, messing with all 4 settings at once then wondering why it no longer works. When you time a cocker you can set 4 things: the backblock length off body (set it once and forget it), the cocking rod length (same as before set once and forget it), the cocking lug/sear height (this adjust where in the trigger pull your marker fires), and the 3 way coupler (This adjusts where in the trigger pull you want the marker to recock).
Ideally you would set it so that the marker fires in the first half of the pull, and recocks in the second. If your timing is off it can make things difficult. So only adjust one thing at a time, and see what that does. Then if it no longer works, you just turn that screw back 1/2 turn or whatever you did to make it off in the first place. Peopel screw up when they adjust four things at once then have no idea what is causing the issue. Do it one at a time to avoid this.
If you want to get a shorter pull, throw on a shorter 3 way, like a bomb or something, though i think STO had a fairly short one. Then adjust the sear lug to fire in the first 1/8 of the pull (can be set with marker unaired. Just cock and try to pull trigger and see when it fires, just gotta make sure you leave enough up that it will still reliably cock and not skip over the lug). Now adjust the three way coupler to recock almost right after the marker fires. Now you havea short pull and a long throw after with wasted space. So you'd remove the grips from it, and underneath the sear is a set screw that you can access once the grips are removed. Just raise that sear to lose all that extra over travel that is no longer needed. Now your pull is as short as posible.
You might also want to sweet spot the marker. This will make it the most effecient possible, not the quietest, but most effecient. Turn the IVG in 2-3 turns then lower the regulator til it is off. Now raise it 1/4 turn, fire 3-5 shots and chrono your next shot. Repeat this and Your velocity should keep going up. Once your velocity drops, you just passed your sweet spot, the most effecient seeting. So turn back 1/4 turn and leave it there. Do not adjust the reg again unless you change valves or springs. Just use the IVG to adjust your velocity from now on. IVG is that disk int he back of your lower tube. That is like an RVA in a tippmann. Controls how hard the hammer hits the valve