The subbox reads ohms..........those settings are fine if thats truely where it is and not shorted at all i would suggest a multimeter or an ohm reader to chack your coil to insure it is where you think it should be dont wanna risk battery safety if there happens to be a short i only am suggesting this due to you saying the calculator says the coil is at a certain ohm and no mention of an ohm meter of some sort being used to double chack for calculator error or the possible user error. we all make mistakes would rather double/tripple check my work to insure safety and negate a possible hospital visit by a stressed battery.
hope this helps and good luck to ya