Funny thing, but my high run in straight pool (only 38) I did using a house cue just randomly shooting while waiting for my son or someone in a league match. Not that I play straight pool ever to try to beat that, but it was one of the very few times I did not miss my break shot to continue past into a 3rd rack. Ever since I remember playing pool, I have heard that the cue makers just try to duplicate the feel of a one-piece cue more or less in their designs.
Good job on the run, but I think what cuemakers really mean is that they try to make their cues feel like one piece. That’s totally different than trying to make it feel like a one-piece cue, which then erroneously conjures up “one-piece house cue.” In other words, with the need to make a jointed cue, the evolution has been to make the cue feel like there are no joints (mid joint, A-joint, B-joint).
The challenge with house cues is going to be everything else mentioned that makes a custom cue. Ferrule, shaft taper, balance, diameters, finish, and just as important…wood selection. I know you know this, but reading some of the other posters who then bring up “you should be able to beat anyone with a house stick” are then misled. That one magical house stick that feels as good as a custom cue (see what I did there?) is going to be the rarity not the norm.