No I never did it on my Neverfull. It was a false alarm, my straps are just fine No peeling!!! And yes i put oil on my Speedy handles a few years ago and they are still perfect and look gorgeous!
I'm glad your NF straps are fine and are not peeling. I'm also glad to hear that your Speedy handles are still in good shape with the oil. I've heard about other people not having been so lucky! That's why I thought I should leave a post.