I don't know if grazing is good or bad, but I definitely agree about not s asking at home. When I'm at the office I DYING to eat but at home I dont care! I think it's boredom at work, anything to tear my eyes away from the screen!
I'd think it doesn't matter much when ou eat, although for me, I handle carbs best early in the day. What does eventually matter is how high your bg climbs during the day.
You could do a trial for yourself. Set times when you are going to monitor Bg and do so on a 3 meals day and then test at the same times on a grazing day. Keep a record and you'll know which method suits you. You'll need to keep the total carb count the same.
Hana