I've done the TBS four times on my 05 and never had any problem getting the mercury to level out at 25 on the Motion Pro tool. This time, when I hooked it up and started the bike, the levels were all around 21. At this point I have the #3 screw turned all the way in and can only get it to 22. Should I just level the othere to 22? Or is this a sympton of another problem?