Gofishracing

yes yes yes. The sound meter is mobile. Temperature, wind direction, barometric pressures, moon phase,calibration and many other factors may effect readings. IT'S LIMEROCK

MUSSBERGER

Low clouds, humidity, time of year. de-muffed days are a lot of fun though.

stownsen914

It's amazing the difference the leaves on the trees make in attenuating sound ... I was pretty surprised when my 914/6 suddenly failed sound at an October track event using the same muffler that I had been passing for years ...