when comparing to spectra in alog 55138:

• ETMY_ST1_CPSINF_V1 has a new peak between 70 and 80Hz
• BS_ST1_CPSINF_H1 has a higher peak at around 60Hz
• HAM5_CPSINF_V3 has a slght increase above 100Hz
• HAM4_CPSINF has some peak height changes above 40Hz, not dramatic
• HAM2_CPSINF, reduced peaks abouve 40Hz
• all others are improved or unchanged
• FAMIS 12889