My better reactive trigger explanation and something to look for on your RT

[secretweaponevan]

... when the gun is at rest the on/off is open, and so the air above the on/off is regulated...

I don't think you are understanding the operation correctly.

The RT valve differs in operation from the classic in a major way.

Classic Valve: Input Air goes through the regulator before it hits the top of the on/off pin.
RT Valve: Input Air gets to the regulator AFTER the on/off pin.

In a classic valve, the regulator only allows regulated air to fill the dump chamber.
In an RT valve, the dump chamber fills with input pressure air until desired pressure is reached and then shuts off any more input air from entering the system. After you pull the trigger, The chamber all the way back to the reg is dumped and then input pressure is only acting against the top of the on/off pin.

This animation on zdspb is wrong: http://www.zdspb.com/media/tech/anim...emag2_6fps.gif
The wmv is correct: http://www.zdspb.com/media/tech/anim...automag_rt.wmv

There is a subtle, but very misleading, difference between the two.

This is why input pressure is enacting on the head of the on/off pin in the RT valve.

edit: For clarification, the Regulator Valve Pin Assembly's purpose is two-fold.
1: It allows input pressure air to circumvent the regulator and head straight to the on/off pin.
2: When the on/off opens, air flows through the Regulator Valve Pin Assembly to the piston, pushing the piston back, allowing the Regulator Valve Pin to move rear-wards against the Regulator Seat O-ring, shutting off input air when the desired regulated pressure is reached.

Watch the .wmv on loop about 50 times like I did. You'll get it (I hope!).

[snoopay700]

That is the exact same animation, just the input is in a different place. What you said is what i said, but when the on/off pin is open and the dump chamber is filled up the air in the dump chamber is regulated, as is the air back at the piston, and the air above the on/off. When you pull the trigger the air vents out of the bolt which lets the reg piston open the reg and it lets the unregulated 800 psi or whatever hit the top of the on/off pin (so it's no longer regulated down to 350 or whatever) which is what creates the RT effect.

If there was 800 psi above the on/off pin when the marker was at rest then the reg wouldn't be working.

For clarification i had already gotten that it hits the on/off pin unregulated at first, then gets regulated down, i was talking about when it was open and the marker at rest, not rapid fire.

[secretweaponevan]

That is the exact same animation, just the input is in a different place. What you said is what i said, but when the on/off pin is open and the dump chamber is filled up the air in the dump chamber is regulated, as is the air back at the piston, and the air above the on/off. When you pull the trigger the air vents out of the bolt which lets the reg piston open the reg and it lets the unregulated 800 psi or whatever hit the top of the on/off pin (so it's no longer regulated down to 350 or whatever) which is what creates the RT effect.

If there was 800 psi above the on/off pin when the marker was at rest then the reg wouldn't be working.

For clarification i had already gotten that it hits the on/off pin unregulated at first, then gets regulated down, i was talking about when it was open and the marker at rest, not rapid fire.

You got it. I wasn't sure you understood that the pressure acting on the on/off top changes by way of the Regulator Valve Pin Assembly.

On the .gifs, the regulated air "magically disappears" after the shot even though it actually increases to input pressure.

[snoopay700]

You got it. I wasn't sure you understood that the pressure acting on the on/off top changes by way of the Regulator Valve Pin Assembly.

On the .gifs, the regulated air "magically disappears" after the shot even though it actually increases to input pressure.

Yeah i got that part, sorry for not making that clear in my initial explanation.

[Spider-TW]

I think I'm satisfied also, thanks guys.