Yes this should work. As long as you are pointing towards the Position of the object which is what you are currently doing it should work. If you need anything else, please let me know.
Sorry for the late reply, this is indeed correct. If all the indexes inside the obj table are pointing towards the right value it should work. If the part value is getting lower or higher (aka negative or positive values offsets from the referencePoint) it doesn’t really matter since in the end it’s still gonna work. If the value is lower its just gonna substract. If the value is higher well the output is gonna be a negative number but since we always substract the numbers it’s gonna be “(-)minus (-)minus” which then turns into “(+)plus”.