Thanks for the updates. That picture of your express sight made me think, possibly order a little bit of platinum wire and tap it in to that center eye alignment groove. Maybe, with that British styled express sight, revisit the striker peep configuration. Only thinking out loud, nothing more.

I wouldn't have the slightest qualms with your barrel choice, have you ever considered the Brux folks. I ask only for curiosity if they are held in good regard around the area?