I have a 950 and an ICBM. The ICBM is between the 950 and my 750.
I don't think there is any way around the DB issue with any connection method.
If you leave the ABM off, you will still get DB feeding to the ICBM. If you leave the ABM on, bass will be redirected from all speakers before it reaches the ICBM so it will render the ICBM relatively useless.
I use my ICBM for SACD/DVDA BM. I really wish the 950 had never come with ABM or that it had been designed correctly.