I haven't been a good girl with the turning (tilting with a Brinsea), so I may have a poor hatch. But usually I am good. And I'm not sure that it's all doom, doom, doom if you let them go 12 hours on the week ends. Let's hope not because I'm sure I've let it go that long at least twice and maybe more.
I forget how often the instructions indicate that I'm supposed to do it. I usually try for three times a day, but I will often just turn/tilt it when I happen to see the incubator. Kind of like, "Oh, yeah, I'm incubating. I guess I should tilt the incubator." Anybody remember what the instructions say? I know ... I probably should have asked that on day 1 rather than around day 16.
When I first got the incubator, I tried for every 3 hours (except at night) which was more than was required.
I think turning is more difficult with a Little Giant, right? Do you have to open the lid and turn each egg by hand? If so, I can see why you would be wanting a turner.