I did have an issue with one of the two rivets that ties the end of the belt loop to the sheath body, where they were placed at an awkward angle, hence, mildly scratching the micarta handle of my GNS every time I inserted or took out the knife. Just placed some layers of masking tape over it which addressed the issue as well as give some additional retention.
I have 3 BHK knives (GNS, Woodsman Pro, and the Pathfinder Scout), and in my experience, BHK sheaths are made with some spotty attention to details, and for Fiddleback lovers with elevated expectations for quality, it'll leave much to be desired.
HOWEVER, in the field, I've found them both functional and durable (the leather's pretty thick and hard), and considering the price you pay for them (free with the knife which are, or were I should say since they're no more, mostly in the mid 100's, and from anywhere from 20s to 40s if you buy the sheaths alone), I think they provide decent value. In all, for Fiddleback owners who don't want to spend 70~100 on a sheath, it's a viable option. To each his own I guess....