Yeah, I originally put 20-30, but then I did a mental headcount, and couldn't think of that many. Also there's a few people I can think of who aren't on this forum and have definitely had sub-WR singles (are the Weyers on here?). I might start a thread or something as I'd be interested to find out. I'd imagine most sub-10 average solvers have had 5s and 6s.