Try and get more time with the kids, with a codicil for additional custody time if you change your career (which would make your available time less erratic).
Everyone shares what works and what didn't work in their posts. Find what rings true for you or piques your interest. 'Anthony' has a good point, the same way my sis-in-law used to say I didn't want to be 50 and looking for babysitters.
My kids are 24, 19 and 15 years of age, two boys and a girl. Time does go by in a flash though the footsteps may seem like drudgery at times. You all lived in a quagmire of division, yet you have flourishing relationships with both your children.
Consistency is key. As long as the kids know what to expect, they feel secure. Children model after their parents. They learn how to deal with conflict, emotions through your actions. Apparently my kids are doing very well right now with a father who is available only for holiday meals with an occasional dinner in thrown here and there. They have watched me struggle and succeed, fall on my face and keep trying.
Anyway.. while writing this I've been half listening to my daughter.. so I'm off to focus on what's important.