I did some quick and dirty measurements of my Heresy III's crossover last night and I think I have all of the values now. By quick and dirty I mean I unscrewed the crossover but left all of the drivers connected, I could hear the 1kHz tone my B&K LCR meter uses through the speaker while testing. So I'm not really confident on the inductor values. I'm pretty sure of the C and R values, I got them off of the components. I've left the component numbers from Xsim on the schematic this time so we can discuss them easily. I think the topology is correct, I've gone back and double checked everything.