Yeah, some of BT's vids of hitting suggest just 5.0 for sure, but it's miles above the other posters on here right now. A mile is more than a full level, in my book. The hitting is fine, the stuff in between just bugs me, how slow they move, how much they need the opponent to hit it in and back to them, that stuff. They haven't shown movement, adaptability, balance, at all.
OTOH, they are better than most vids here. At least it's not contrived for the camera frenetic contrived footwork.
I suspect 5263 can play at lower 5's, so it might not be the triple bagel.