70 up charging system upgrade question

Thanks, looks like u tied into correct side of ballast BUT, your diagram shows it as splicing into blue with tracer? I spliced into solid blue wire that comes from ballast and key switch(I believe)?
Also my new ballast shows 1.7 ohms resistance. From what I've seen/read, it should be 1.2? Any foreseen issues?
Thanks
Here is the best diagram I have. I tied into the blue wire as it shows.View attachment 1715226080

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