I gather this is being considered in v 2.Christian Nubian - essentially split into an early and late list, former no more mounted than the current list minima (plus nobles), latter no Superior archers.
I would note the current style of CN that is more and more superior archers and fewer mounted would still be seemingly little changed in this short hand description.
I thought there was some talk about in the early period of making half the bow average?
The early superior i presume is because the resisted the arabs?