It is 100% magnetised
I don't have for now the BP16610 as I sold it waiting for another one - I know don't ask
Anyway, my BP16600 (same VRmvt) on arrival did not looked very good on timegrapher, after 24 hours was very ok tested again - this was in January
Seeing your post I just checked again the 16600 and had suddenly -25 / -30 sec and 0.8 - 1.0 BE
Went now to demagnetisation tool and after 2 passes this is the results again ....so I think these get very fast magnetised around our computers, electronics whatever - is not that they have silicone spring after all
This is just now after demagnetised