Picking up on what Charlie asked, I'm not sure I really know the difference between a custom bow and a production bow.
Oh, it's pretty easy to tell the difference at the ends of the spectrum: when a factory mass-produces bows out of the same materials to the same standards, those are production bows; when a bowyer carves a bow out of a yew stave, allowing for the individual knots and bends in that particular stave, that is a custom bow.
But what about a bow that is cut out by a computer-controlled machine to exacting tolerances, such that if you want extra limbs later on, all you have to do is order them? That bow may be made out of wood lams you personally selected, have a custom grip, and be tillered to your style of holding the string, so by the time you get it, it may not be exactly like any other bow in the world, except it may have the same tolerances and limb fit as a thousand other bows made to the same specifications.
I like 'em all, if I like the way they shoot. I'll probably never sell my DAS Dalaa or my Strunk self-bow, which are on opposite ends of the custom spectrum, but I've bought and sold plenty of bows in between that looked real pretty to me at the time I bought them, but I ended up not liking the way they shot.