I printed an image at A0… and the result was important on a number of fronts.
The highlights were blown out on the print… so that is unacceptable. I went back into the raw files, and reprocessed with holding onto the detail in the whites. The raw file is correctly exposed, but when I pull up the background I am blowing out the lights. So I masked the highlights and that produced a much better end result. Lesson learned.
The question of size: My first instinct was that A0 was too large. On hindsight, and thinking again, it might be… I am now going to print at A1 and see how that looks.