Verification, please?

This thread got off-track and sidewise. To the extent I obscured the matter or was unclear originally, I'm sorry about that.

Re: 4-pin or 5-pin ECU? Doesn't matter. Both are the same in regard to the question.

Re: 4-pin (dual) or 2-pin (single) ballast? Doesn't matter. Both are the same in regard to the question.

The ECU gets a compensated supply voltage Start. It does not get a compensated voltage on Run. That struck me as odd.

Overthinking it? Guilty as charged!