I have thought about quail. Maybe one day. Do you have them in an enclosed aviary or do they stay outdoors? I really know very little about them.
Great! I hope the trip was kind to them! A thin book was enough to shift them and didn't upset the water too bad. I didn't completely fill the channels.
To be perfectly honest, I didn't notice any benefit to doing it that way. I had a lot of stugglers on hatch day and malpositioned chicks. I know no conclusions can be made from a single hatch, but now if the air cells are bad and the eggs are needing to get started I may start them out that way for a day or so and then will place them on their sides by candling time on day 7, if not a bit sooner. I find that as the chick grows the air cell will generally get squeezed back into place anyway. I'm no expert though by any means.