I hadn't seen that, thanks. I wonder what they mean by "parallel network"...LOL.
I'm making an assumption of how the woofer is laid out. If you pair up mids, tweeters and the one woofer using Xsim's default speakers, plug in the crossover points, watch the response dip. Reverse the polarity of the woofer, and it smooths back out. I know, the default isn't what we're working with, but the results were interesting. I couldn't do a screen capture of the program for some reason though to show it.
My microphone shipped today, should have it Saturday. If I can figure REW out fairly quickly, I'll have those ZMA files and we'll be able to simulate this much better. I'm going to measure the speakers, in box, individually. L Mid, R Mid, U Tweet, L Tweet, Woofer.