Over 50% is a good goal for high level. Against some opponents, 60% (3-out-of-5) or even 67% (2-out-of-3) will be a better goal, because they aren't capable of passing 50% Good Pass. But good teams will pass at least close to 50%, so then your serving goals have to be closer to that.
Sorry if you've covered this somewhere else, but what is a good KO% goal for a high level HS or 17-18s level club team?
Over 50% is a good goal for high level. Against some opponents, 60% (3-out-of-5) or even 67% (2-out-of-3) will be a better goal, because they aren't capable of passing 50% Good Pass. But good teams will pass at least close to 50%, so then your serving goals have to be closer to that.