Koji is working on PRMI locking with different photodiodes, and rather than typing different numbers into the input matrix, it is more convenient to just be able to click on/off buttons for different filter banks. So, the CARM filter bank in the LSC model is currently being borrowed as a secondary PRCL filter bank. I have copied all of the current PRCL filters over to the CARM filter bank.
Just for reference, although we have not yet used CARM for CARM, the previous filters were the "default" set, +6dB, 0:1, 1:5, 1:50, 1000:10, RG3.2, RG16.5, RG24, empty, empty. These are currently the same in the DARM and MC filter banks, so we can copy them back over in the future.