Deek said:
Is there an up-to-date Gate Open Probability/Seal Priority reference that includes Dunwich and Innsmouth?
You can see the spreadsheet I put up at BGG. Look at the column "Gate Appears" in particular.
It doesn't address the various dilution strategies (i.e. it assumes you toss all the Mythos cards in one deck). I'm working on an update (likely out after Lurker is released) that will start to address this.
It's like the game thinks, "Hey that investigator has tons of clues, I'm gonna send him back to square one."