How do your cats do with introductions??

weeellllllllll.....
lets see, Emma and Louise did very well with Patches and Charlie , because the boys were babies, but they were scared of Muffin, of course Muffin was the "resident cat" already, and she picked on Louise
Emma and Louise did ok with Cassie, but they picked on Callie.
Charlie and Patches were babies so they bonded with each other, and have grown up with their 2 big sisters and all is well, and then later when Cassie was there, they took to her after a few days.

did I make sense in all that? if these other 2 males are 2 years old, I don't know how it will go, but they have been neutered at an early age, I guess that makes a difference... and I don't know how they will react to 5 "resident cats" of course they will have each other for moral support..