Ode to the Picotin

Hello! I have a two questions for which I hope so one may have answers:

Do the older model Picotin (without the locks) have any issues with the long strap that buckles curling up? I was wondering if these straps may tend to do this without the lock to weigh them down...?

Does anyone have any experience with the color Parchemin in the Clemence leather? Is it difficult to keep clean, and do you find it to be a season less neutral, or more suited for warmer weather?

Thanks so much for any advice you may have!