By holding the ON/OFF button the the UP button at the same time, you will be able to adjust your pregate, 1 ball and 3 ball settings for 34mph L and N and 36mph L and N. Each boat is different and will be some fine tuning to get actual mid course and end times. Don't just focus on end times. You'll get 16.95 everytime. The devel is in the details. The adjustments that the boat makes at 3 ball to get the 16.95 end time can have a dramatic impact on the skier. If you are running 7.18's mid and 16.95 end times, the boat is smoking the skier on the back half of the course. If you are getting 7.06 mids, then the boat is smoking the first half and slowing down in the last half. In order to balance the two, you will need to adjust the pregate, 1 ball and 3 ball settings accordingly - up for slow mids and down for fast mids. I would suggest a pregate of .50, 1 ball of 17 and 3 ball of 15 to begin with. Adjust upward or downward from there. jhd