Same here on the nocking point as I set it about the same among six old recurves and I shoot (52" to 64"), and use the same length arrows among two brands of carbons. Learned through some money lost on carbons in the past that I typically select a size lighter spine on carbon arrows since I have a short draw length and then work out point weights. Get as close to a good flight as possible bare shaft but don't get too excited about it, especially if I think my shaft size selection was good. My best luck with out of the box is with Axis Trads, as they seem forgiving to me.
Actually, even though it can be frustrating at first, and cost some time and money for points etc., to tinker with carbons to get perfection, the advantage of carbons is that they can be tuned to our individual styles of shooting very well.