Pertronix II trigger and 0.6 ohm coil with points backup Options

[SVG223]

In case of a Pertronix 2 failure, I want to keep points or a cheaper Hot Spark in the glove box for a backup. I already have a 3-ohm 100-watt resistor. I should put the 3 ohm resistor between the switched power and the positive terminal on the 0.6-ohm coil, which should make 3.6 ohms of combined resistance and be safe for points. Bypass the resistor and use the key-switched power directly to the points and condenser/hot spark trigger. I already have these items and don't want to buy a second Pertronix 2 trigger.
Sound feasible? Thanks.

[L-Jet914]

Most Pertronix units require a specific resistance so as not to short out the unit prematurely. I know the Bosch Blue coil I have has the right amount of resistance to operate properly. A friend of mine went through multiple Pertronix units because he did not have the correct resistance for the unit.

[SVG223]

Most Pertronix units require a specific resistance so as not to short out the unit prematurely. I know the Bosch Blue coil I have has the right amount of resistance to operate properly. A friend of mine went through multiple Pertronix units because he did not have the correct resistance for the unit.

Pertronix 1 / HotSpark / points: require a 3 ohm primary coil resistance or higher.
Pertronix 2 0.6 ohm or higher.
My Bosch Blue coil has an internal resistor to add to the primary winding to come up to 3 ohms of resistance and works with all of these options.
I recently got a Pertronix II 0.6 ohm coil to go with the Pertronix II trigger that I've been running. It came with incompatibilities to the older systems, so I'm trying to work around them.