I have always found there isn't a magic recipe when it comes to gas blocks adjustment.
When they are new, there is some break-in that needs to occur, that changes the setting. The carrier to receiver smooth's out, the spring wears into the receiver extension, the drag from the top of the hammer to the carrier, the tightness of the chamber on how hard brass extraction is, rings on the bolt seating, minute differences in the gas tube chosen, the buffer smoothing out on the circumference to the extension, leakage around gas block to barrel and gas block to gas tube, the type and amount of lube used, the ambient temperature when set.
All these things have impact on the system and some will change over the first 100-200 rounds or so....
I get them running, leave them pretty dry, put at least 100 rounds through them on barrel break-in, and then let it cool, clean and lube well with CLP, and adjust again.