My game was missing the upper flipper bushing, so I printed my own. It press fits into the upper pf from above. I designed the bushing to interface the flipper shaft with three narrow rings to limit friction (as opposed to the entire busing inner wall being in contact). After a quick test play, it is 100% improved. It has zero side to side play and rotates freely. If you have access to a 3d printer you can download it here;
https://www.thingiverse.com/thing:5568452
bushing (resized).png

Yeah, I had considered extending mine all the way down, but I couldn't think of any advantages. If the bushing at the bottom and top are snug tolerances the long shaft should be perfectly supported. Care to share the design decision behind making the new DP one full length?

Maybe, I'll think about it.

No, I think you want the rear mount ones and remove the diodes.
https://www.pinballlife.com/williamsbally-oblong-stand-up-target-rear-mounting.html

Ah man. Apologies for steering you wrong. Just a couple of weeks ago I had all of mine apart replacing the loose pop-rivets with screws. I thought I had a clear memory of the assembly after that...strikes and gutters I guess

Hello @koenheltzel. I sent you a PM with some rule tweak suggestions. Let me know if you or Rensh would prefer email and I will resend.