I have an Ibanez Soundgear, and I know it has those screws on the back that enables you to remove the neck. I'm pretty sure that they put that feature in to allow you to exchange necks for your guitar. My question is, are all necks the same width (given the number of strings they are made for are the same)? And do you think a Novak fanned neck would fit on my four string? Would I have to adjust my action, altogether, to accommodate the new style fret board? Thanks. --Arojekt.