Yep, I am thinking you should make your own nub.
I feel ignorant.. I'm still not getting what you mean lol.. Its been a long day man.. :cheers:Just use it instead of the dinky little screws provided by PDI.
With .20's I bet I'm around or over 600 honestly. Using the "poor mans chrono" on a coke can, I can easily blow through the bottom end and severely dent the top end of the can..... with .40's.
- What distance are you looking at when you say no hop up is occurring?
- If you can chrono your gun w/ 0.20g when it is able to shoot, what is the FPS?
Btw, the spring PDI includes is nearly essential when shooting higher FPS. Without it the hop up arms become too flimsy and therefore hardly applies any hop up.
I suggest cleaning your bucking + hop up chamber to potentially fix the problem and it will help your accuracy regardless. But first, it seems like the nub is primarily the issue. So...
3. Could you please go into detail explaining the nub you made?