I have considered getting a Bravo AVS for years. The only thing that has stopped me is the lack of 18650 support. I just can't stomach the costs and environmental impact of primaries these days. I always knew about the OR boring service but, the wall thickness(or lack there of) after boring has always worried me. That and OR rarely seems to have them in stock. It's a bit hard to tell how thick the wall is in that pic. Maybe Grizzman's pic will show it better from the top down. The runtime graphs do look pretty good by the way lol.
I recently sold a bored out Charlie on this forum. I just looked at that WTS thread, but my photos won't help you gauge the thickness of the tube. FWIW, I never had the sense that the strength of the tube had been compromised, if that's your concern. There were no issues with the high/low tail caip.