So you should be reversing your min and max rather than the Start/Mid/End. The Mid is the key for setting the fretted position, whereas the Min/Max settings change the 'polarity' of the effect... The principle of what you're trying to achieve is do-able but the reality is that it won't sound good because you won't get polyphony with the Pitch tracking... In other words, while your playing your 'bass' notes the tracking is setting your octave On... so it will also be applied to everything else too... it just gets confused..
For arguments sake, here's a screenshot of settings that would theoretically do what you're after.
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