Okay, I have a party of 6 people (That's huge for me), and I'm having difficulty deciding what CR of creatures to place them up against... Does anyone have a good Idea? They are all the same level 4 right now. But CR fours are easy, and 5s can sometimes be pretty easy. I'm also a pseudo-munchkin when I play a char, so I can use the monsters properly. Anyhow... suggestions?