DarkSoul, a more narrow width does not mean that the bow will have to bend through it's length.
True. What I was trying to say, is that a narrow bow will not taper uniform, as a pyramid bow or even a normal flatbow would. The smaller amount of width taper should be reflected in the tiller, meaning less circular and more elliptical tiller.
Apart from this aspect, I would also think that a somewhat short longbow (68" for 29" drawlength), especially made by a novice, would be best off to bend through the handle. Yes, you
could leave the handle stiff, but that would probably mean more set (if nothing else) due to a shorter working limb length. I don't want to pull Bowman53 out of his comfort zone (although at some point he will like some more challenge), but I find a bend through the handle bow actually easier to make than a deep handled flatbow. You don't need to worry about fades and transitions, which makes it easier.