I often marvel at Taylor’s production line capabilities. You point out the purfling around the headstock. On my K24ce, this is done in maple and extends continuously down both sides of the fretboard! Amazing! This type of detailing would only be done in custom shops at other makers. BT often comments about his history of engineering unique production machinery and the joy he receives from these accomplishments. The mindset that they will be the innovators of the industry keeps paying off.
Yes, the K24s and the 914s do have some wonderful purfling work using woods for accents. While the Ivoroid on the 614 can't really compare to the wood inlays, Taylor actually positioned its grain not in the flow of the purfling but perpendicular to it (at a 90 degree angle) resulting in a semi-herringbone look - double line on the top, single line on the back and around the headstock - it's sort of mind-blowing in its tiny detail!