So, I have a question that has bugged me for a while. A lot of people suggest making the body big enough (if it's a single cut) or making the horn long enough (if it's a double cut) to support having a strap button at the 12th fret's location. I understand the reasoning for this, but I am wondering why nobody is suggesting to simply add an extension to the side of the neck, such that there's a protrusion at the 12th fret, and a strap button can be attached there? This would make it possible to have a perfectly balanced thunderbird or similar design of a bass. Thoughts? What would be the main risks/problems associated with this?