The 3.5 Rocket connector has an over travel tab. You need to file the tab to engage at the precise point where the trigger releases the striker and fires the gun. Any rearward movement after this point is referred to as "over travel". Any over travel is basically wasted movement. This is a great connector "package" in that you get a 3.5 connector and an over travel stop. The only issue at hand is once it is fitted to your gun it becomes a custom piece for that gun only.
Odds are your 34 already has a 3.5 connector in it. They come that way from the factory. If you already have a 3.5 connector, why purchase another one? An alternative trigger stop available to you is the LWD Ultimate Trigger Stop (LWD-UTS). See it here http://www.lonewolfdist.com/Detail.a...4&TERM=lwd-322
This unit performs the same regarding an over travel stop however .... You do not have to file to fit, it is fully adjusted using an Allen Screw. It is easily turned on or off. It transfers from gun to gun.