So after reading that nicely attached document
It seems to me that if you have a lifted motor with no caster correcting on it you front flanges are at different angles so you should out of phase your prop
This could cut down on overrun death wobble where the prop is driving back rather than being driven through

front props unless series arent parallel in standard form ,castor correction puts front diff nearer parallel which counteracts the greater angle caused by the lift
 

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