Thanks Mike.
So if the 85's are 3db down at 85, where do I set the Force (in general, I know it is room dependent). Does the Force, when set at 85 start it's 12db roll off (I think I have it right this time) or is it plus some number at 85?
By the way, additional indexing on the Force XL cross over knobs would help

What I hear using warble tone sweeps (takes the room effect out in theory) is a slight hole right at the theoretical cross over point 85HZ.
As long as I get to pick your brain a bit, knowing that I am having difficulty loading the room from 3 bass points, are the 65's or 85's a better choice?
If anyone out there has not heard the bass these Sapphires are capable of - you need to. It is hard to explain.
Thanks
DR