For some reason I have stopped receiving notifications for thread updates. (Notifications are enabled.) I was going to suggest a double flour application but you have already reached the same conclusion. I think it looks much better having the second application.
The heavier more even application of glue looks better in my opinion....Really, Painting will tell all as I'm sure you are aware, if there are any issues THAT is where it will show up...
........For useful hints or suggestions I would be grateful.