Yes. Accuracy seems to vary quite a bit from sensor to sensor.
I flew a MSPEED 360 sensor in my speeder plane where I was able to easily hit the 100 m/ sec limit.
So I exchanged the sensor with the new MSPEED 450. The pitot tube and silicon tubes remained the same at exactly the same position as before.
interestingly the max top speed I can achieve now is around 320km/h with exactly the same power train and setup as before. (BTW the 320 are way more realistic than the previously measured 360km/h
)
Cheers Stephan