Tried that trick as a programmer analyst. Ended up spending 18 hours a day locked in the back room... Good money, no life and no back-up if I got sick.
About to try it again except we're thinking about dropping out of society as a whole and going more bush than we already are.
Your boys will love you for every second of extra time you can give them. though, and that's the BIG plus. Boys need there dads.
Here's an idea.....
Send swmbo out to work...