Sounds like the game code uses the cointoss to validate the shooterlane ball has entered the playfield. Helpful to know, don't bother with the shooterlane switch on WCS94.
Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside