After my first year with the 7700 bourgault tank I was quite happy with it in general. One problem I had was after the calibration it always seemed to put the product on way too heavy. Seemed like it was always 20 percent heavy and I would have to decrease the lbs on the x30 till it was right. Recalibration didn't seem to help but once I got it putting proper amount on it was consistent. We have the load cells on it and it was easy to tell how much it was putting on. Did anyone else have this problem?