The plunger tends to be a little slow on my version of "Phantom of the Opera" but the action is quite smooth:
http://www.pinsimdb.org/pinball/table-2 ... a_ultimateI am not sure if you like it or not. The slower action allows you more time to identify when you release the ball so you get the skill shot. If you like it, you can search the script for "Plunger Mod" and you can identify what you need to add to any table that has a normal plunger. The coding won't work on tables like Medieval Madness which uses an autoplunger.
The method I used is a little different from Francisco's. It requires you add a timer to the playfield.
George