Quote Originally Posted by Maris View Post
Fibre base paper changes size when taken through a wet/dry cycle. The direction and magnitude of the change depends on the individual paper and the machine direction of the paper fibres. If accurate registration of multiple images is required then RC paper is consistently reliable.

Soaking and drying FB paper prior to exposure and processing reduces the size change problem but is such a nuisance I only tried it once before going to RC.
You've done that? Wow, you were very brave!