I had been using twill tape on my wallets as you can see by my previous posts. I decided to experiment with the rolled hem setting on my serger to see if I could get a similar, finished-looking, effect. I can get it up to 1/4" wide. My sewing machine repair man advises against using the serger cutting blade on the vinyl, so I disconnected it.
I think it looks neater than twill tape and it would be robust if sewn in upholstery thread. I am looking forward to using this technique on my latest billboard vinyl handbag project.