I pretty much agree with this, I would be worried that the print would collapse upon itself.
I use very large trays specially built for my darkroom to make big prints.
You also can make large holding tanks 55 inches x 2ft x 1ft depth and scroll your prints by hand, you need to leave a border for handling , but we do this all the time with
fibre paper.. In our case 30 inch x 12ft pieces of paper with no issues , but I see no issue with 50 inch x 12 ft prints.
We do this for ganged up images that are printed on our lambda , then in a monster tray we cut down the individual images for post treatment.
There are other labs that use a roller transport for this purpose, but we prefer the hand prints.. We have been doing this since 2002,
I learned to scroll prints back in the 80's . Made some murals on the weekend on the new Art 300 paper and for sure this paper would collapse in a tube.
Originally Posted by AndreasT