Welcome to the weird world of wedges!

I'm honestly not sure what's going on, but I've experienced something similar with a near-wedge J Wostenholm EBRO. It just didn't feel right when I tested it while honing (even compared with my other near-wedges), but it always shaves absolutely beautifully. I have very fine arm hair which never, ever works for a mid-hair test. It just bends away. So I'm really pretty heavily dependent on the TPT and the regular arm hair test. And my EBRO always feels like it has a below-par edge on the TPT, but then mows through arm hair beautifully. And of course on the only test that matters - the shave test - it's fantastic.

I have a few other near wedges: A Wheatly Bros (current favourite along with my W&B FBU), two W&B 7/8 near wedges, and none of them behave in this way. They are all fantastic shavers, but they all have very different personalities.