Good work, Marty !
With the soaking of the parts - be it plastic posts or metal guides - use HOT water with Nifti to loosen the dirt. NEVER do this with playfield Plastics !
What I do is place the parts in a container, spray Nifti on the parts and then pour a cup of cold water in the container, then add the boiling water to the cold water. Leave the parts overnight and wait to see the results in the morning !
I should have mentioned that!....Playfield plastics always get cleaned with Novus (only). They are currently between 2 sheets of glass over a duct to flatten...
I am due to change my tumbler media too. A gunsmith suggested brown rice with brasso (raw!). I may give this a go - very cheap and cant do any damage.
