That’s very rare. My BPFSL has always been longer than my BPEL. I tend to think that this difference may be more pronounced with growers, than show-ers; and even more with those who have a lot of girth.
As slezak said, my BPFSL is also a “pretty thin ribbon”; however, my BPEL is pretty thick (and I’m also a grower, not a show-er).