Before you do anything more, calibrate them.

Because 85-90 means absolutely nothing without calibrating them, we don't know if you are really in the 75 range or 105 range until you calibrate and get on the same scale the rest of us are on.

Depending on how that goes it may give some hints to the problem.

- Fiddler (IMHO)

If you think listening to music is fun, try learning an instrument.
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