There was one failure to extract (it happened with another shooter so I am not fussed about that). Besides it is early days and the gun has to be given a chance to settle.
I found something a bit disappointing: the rear sling stud is skew. No problem, I thought, I will just open the butt stock and adjust it. Well, there is no chance of that, because they have made a bit of a hash of it at the factory: the screw has been inserted at such an angle that it actually protrudes out of the plastic channel. See the images...first the sling stud viewed from the butt end:

Now the screw placement. Note the tool marks also, inside the butt stock:

There is no possibility of adjusting the sling stud with the screw in that position. I've passed the images to Shooting Shed (that's where I bought it from) and they are investigating on their end what options there are.
In the worst case scenario if I have to fix this myself, what do you guys recommend I do? My first thought is to remove the screw and fill that channel with some epoxy. Once it has set, drill a thin pilot hole (a lot straighter than Bora Arms did, mind you) and then redo the screw.
Would that work?