Your welcome.
Actually there may be a lot of reasons causing the voltage drop on the ignition circuit. Loose or corroded contacts, weakened copper wire (they are loosing their diameter as they get older), dirty switches etc.
With this modification you will not need to deal with the cause of the problem.
Of course if you have time, skill and equipment to find and fix the problem it is always better.
Actually there may be a lot of reasons causing the voltage drop on the ignition circuit. Loose or corroded contacts, weakened copper wire (they are loosing their diameter as they get older), dirty switches etc.
With this modification you will not need to deal with the cause of the problem.
Of course if you have time, skill and equipment to find and fix the problem it is always better.