I noticed (somewhat surprised) that we run the ITMs in distributed design (the ETMs are off-loaded). Unless someone remembers a good reason for this, I would recommend switching both to offloaded design. We require a balancing of ETM and ITM transfer function for the HARD/SOFT basis change, which is a bit of a nightmare if we run ETMs and ITMs in different modes.
This also means that by AS top stage offloading implementation (alog 28763) did not work for the ITMs since I relied on the signal flowing through the L1 filter banks. We will have to redo this.