Last night 68531, Dan found that the Ring Heater Inverse Filter does work as Expected, see attached. The aim of this filter and TCS_ITMX_RH_PWR guardian is to get to the desired RH power as quick is postible without overshooting. See LLO15213 and Danny's alog 47770 instructions.
I added a note to the RH medm to clarifiy the Filter Input (W) is power per segment.
I've accepted the ITMX_RH_INVERSE_FILTER_IN value of 0.88 (where it used to be 0.5), a change made on April 9th, presumably during this functionality test.