IM and Spidey aren't similar. You might say IM and CSI are similar. Or IM and TRS are similar. All three have rules written by Lonnie Ropp. But Spidey is nothing like IM. To get to the wiz mode on Spidey, you need to chop wood for at least half an hour. On IM, you can get to both wiz modes on one ball. That's the beauty of the game.

Asking for deeper rules on IM is like asking for deeper rules on BSD. Sure, it could be done. But why would you? It's already an awesome game. Don't fark with a good thing. Stern is doing the absolute minimum to get these games out. Buyers shouldn't expect extras.

For higher scores (and less boredom), work on war machine and whiplash instead. Don't play monger unless you have to. Try to start war machine multiball with only one or two hits left to start whiplash multiball. Then bring in whiplash for the stack (and big points). I can see how monger over and over could get tedious. Change your strategy up and you'll enjoy the game more.