I don't know about cheaper easy to break neck woods being a thing, truss rods potentially. But the neck on these guitars is visible so I think they're using quartersawn rock maple on both. I may be wrong here, but can you really judge and separate maple supply accurately based on their density and how do you measure how "stable" one is? The neck wood bit of that is a conspiracy I don't agree on, but I'm sure there are corners cut elsewhere like potentially the truss rod and other parts. The neck on the 2 pro's I played reminded me of the USA models I had before for what it's worth. Ibanez also has dozens of neck profiles at this point, which probably don't differ too much other than in name.