One difference I note is that Fender seems like more neck changes are done as modifications for quite an aftermarket in the neck . . . arguably the essence of everything resonating anyway. If tension in strings is changed dramatically, how much you may have to re-align the neck, or is that dependent on the neck wood material and construction and weakness or damage to the neck. Anybuddy swap a neck out on a Gretsch, as simple reason as any it may be ?