This will show you how to put in buttons that will serve as the clicky button in the analog sticks.
Step 1: Materials
You will need:
>An Xbox 360 controller (wired or wireless)
>a Torx size 8 star key (I got mine at http://www.evilcontrollers.com/ along with some improved analog sticks)
>2 momentary normally open switches (I used two of Radio Shack's part number 275-0644, they cost $2.69 a piece)
>A helping hands (they help a lot)
>A soldering iron
>Some thin jacketed wire (I got mine from a crappy old PS2 steering wheel)
>Also a utility knife for stripping the wire helps
>Finally, some snippers for cutting plastic
NOTE THAT YOU WILL HAVE TO REMOVE THE RUMBLE MOTORS TO FIT THE BUTTONS!!!
Step 2: Solder Up This Puppy
That clicky button for the analog stick pushes down a little 4 pin button. You only need to solder onto two of those pins, as the pictures show.
Also, the left analog stick's pins are buried underneath the left trigger assembly, so you'll have to cut it a bit. Just hot glue it back when you're done ad it'll be fine. Also, you should remove the trigger and it's spring before breaking it.
Step 3: Drill the Button Holes and Solder the Buttons
Find a place that both feels good and fits. The buttons I used needed a 1/2" hole, so I just found a place that fit, and drilled. I had to cut out some of the plastic where the rumble motors were to fit them, though. Once you have the buttons installed, just solder one wire to one pin, and the other to the other. It's a piece of cake now.
Step 4: Put It Back Together and Snipe on Halo With Ease
If you've managed to get this far, putting it back should be easy enough. Remember to tuck the wires in nicely.
This mod makes sniping is Halo and COD easy.Aiming down sight with the sniper on Halo never worked well for me. Also, when running in COD, my thumb doesn't slide off the stick as much.