To be clear, I’m not knocking it.
However, on the face of it how many shifts are you going to be moonlighting when you’re working 20/28 with a set of nights? Let’s be generous and say you work 4 moonlighting shifts a month the last six months. That’s 1.5 months of attending shifts. Even if you could do 3 month worth it wouldn’t really matter much.
Most of the effect those people are seeing is probably that they are choosing people who are confident enough as an r3 to go be an attending, which is a different subset of residents.
It will probably make the attending jitters less but it just doesn’t matter that much.
The main thing I could see it doing is changing your approach to learning from your Attendings last six months. It probably would have for me.
So do whatever works for you.
Edit: just noticed you claim you’ll have a “year of part time work.” I have no idea how that can be true unless you’re working less as a resident than I do as an attending. That would not have been even close to possible where I went, but if it’s true, good for you. An extra years worth of shifts will make a difference in anyone, and has probably been great for the bank account.
I do question the wisdom of working a years worth a shift when you know the least you can in your entire career with probably the highest likelihood of committing a mind numbing malpractice error, but to each their own.