I've had no different success rates with saddled and unsaddled air cells. I don't even worry about it anymore.
I also have had no issues with saddled air cells. In my incubators, the eggs lay on their sides anyway, and not upright. They get turned the same as all the other eggs. At lockdown, I do place the saddled eggs with the air cell on top, and mark its location.That’s awesome!! Do you keep the saddled eggs in an upright position to hatch?