Your VTF is fine. Micro adjustments like from 1.64 to 1.58 are insignificant. BUT to the extent they do matter you are going the wrong way. Mis-tracking problems are always solved by more VTF not less.
I do not however think that is your problem. If it is skipping to the outside for no reason (no scratch, no dirt, etc) then this is probably due to too much anti-skate. Reduce anti-skate. Do not pay any attention to what the setting is "supposed to be" just pay attention to what actually works.
I do not however think that is your problem. If it is skipping to the outside for no reason (no scratch, no dirt, etc) then this is probably due to too much anti-skate. Reduce anti-skate. Do not pay any attention to what the setting is "supposed to be" just pay attention to what actually works.