Originally Posted by
cpt_RedBeard
There are 3 holes on the cap.
1) The small hole at the very top where the standoff passes through.
2) The emulsion hole that takes a screw and a o-ring after drilling
3) The bleeder hole on the side of the cap.
To build a non vented shock you need to drill #3 only.
To build a vented shock you need to drill #1 & #3.
To build an emulsion shock you need to drill #2
You can drill all three and still build vented. You can drill 2 and 3 and still build non vented and emulsion. Once you drill #1 you've got a vented only shock cap.
You can always use the screw and orings in the vent hole with a bladder build. I would suggest drilling both to build bladder vented and then play around with it at the track. Put all 4 screws in for non vented & drive a pack then pull them out to try vented.
Maybe vent the rear but not the front to give the front a little more rebound or vice versa. Only takes a minute to try different combos.
But like you said (started with Yarr!), the small holes should be drilled for bladder so you can just fill, cap about one turn, push the shaft all the way in and screw the cap down while holding the shaft in for an easy zero rebound bladder build.