I guess the point I am trying to make, perhaps badly, is that if you have a 1 piece maple neck, a different 1 piece maple neck may sound just as different as a neck made of something else. The variation within just a species is huge, otherwise every Fender bass would sound the same. But to expect a specific tone shift from changing a neck, to the extent of changing its character in a specific direction, I'd just be very surprised. Stingray is a good example; stick a graphite neck on a 'ray and it still sounds like a stingray. Sure, some differences, but the character remains very much stingray. I daresay if you put a 1 piece maple neck on your Wal, it would still have all the character of the Wal.