Fellow mac method users:
I was practicing the method on my #8 LWBs and RL Marlow shortwings a few days ago. Worked great as always on the LWBs, but I noticed these significant creases developing on the Marlows; similar creases are nowhere near as prominent on my #8s. Rubbing them didn't help much.
FWIW I was caught briefly in a thunderstorm while wearing the Marlows earlier that day, but the water just rolled off the shell and I pat-dried it afterwards. Suggestions?