Quoted from TheLaw:Well this is usually do to an incorrect post being used at the end of that ball guide under the top hat. What post/rubber is there?
TheLaw, I think that you are bang on with this one. There were two things really, one was a small burr on the lane side of the ball guide, this I have filed down and the other is that post rubber. It's a blue one that Aurium added, when we shopped the pin. I'm not sure if I have a thinner post rubber but so far just taking off the burr has reduced the majority of drains now. I will search for a thinner rubber.
I also notice that the plunger is not sitting correctly, I have been adjusting it but I think that for this pin to play properly, the plunger should be perfectly centered with the ball, otherwise the ball doesn't make the habit trail properly. What have other owners here done to adjust this properly without having to shim the shooter housing (plate) from the front side of the cabinet?
Thanks!