Ramsey, in response to the 2 changes a week - it works. On my old 90G I did twice a week 5G changes. A benefit that I found was that I had no need to dose anything extra either.
That's good to know that you've been successful doing it. It seems like it's a better way to go since you wouldn't be dumping a ton of trace elements in the tank all at once but instead you're slowly adding them back constantly. I'm gonna give it a go!