Well, he’s called Brian and he’s just super 😉
On my Fortitude I run 762mm flat bars 9degrees of sweep IirC with Ergon grips and a 29er+ wheel in the Cromoto. Zero rise stem as the front end is already fairly low.
On my Sherpa I run the same bars, bolt through Cromoto fork and std grips. Currently a zero rise stem but I may swap it out for a negative rise one.
On my Inbred ( nursery run, shopping etc ) bike I run Mary bars. The ride position is much more sit up and beg. Running a zero rise stem but on top of 30mm ish of spacers. The bar is very comfortable and confidence inspiring at low speeds especially with LMTTM junior on the back.
Currently looking at building a Longitude and hoping to try a Jones loop bar as its wider than the Mary and I hear sprinkled in awesome dust for that extra gnar.