Make sure each Dauz pad is firmly secured to the rack or drum stand. Check to see that the pads do not come into contact with the rims of neighboring pads. Make sure the rack sits squarely on the floor. There should be no play at the rack joints and no wobbling of the rack. Use medium weight drum sticks.
Heavy sticks can cause unwanted vibrations.
Lighter sticks might not send sufficiant trigger signals. If you are using an amplification system make sure you are not experiencing false triggering from the audio system. The following are some of my sample settings. I find them suitable for a wide dynamic range and sensitive to subtle playing nuances. It is important to understand the interplay between the gain, velocity curve, Xtalk and mix volume parameters.