If you use detergent, use Dawn dish detergent Very diluted. It's a Strong detergent but also skin mild. It's what they use to clean the living sea birds drenched in oil spill oil.
The Everclear is good but there is a trick to that. I use the bottom half of a clear plastic Wendy's Frosty cup they don't use anymore. Any thin plastic container will work, NOT Styrofoam though. Put your parts in the container and fill with solution. Put that, (weigh down with quarters if need be) in the Sonicator full of water. The sound waves go right through the plastic and you save Lot's of solution.
Kooh-i-noor RapidoEze, used in a Sonicator, the only thing that will remove misused India ink from a fountain pen, is about $15 a bottle shipped.
Bruce in Ocala, Fl