Ok....I have heard David Grissom say that Paul Reed Smith has tried to convince him to change some things on the DGT over the years and David has been very adamant that the guitar stay true to specs. Now, I have a 2012 DGT Goldtop/Darkback which I love and recently had a chance to play a couple older DGTs. These happened to be Sunburst (tobacco and cherry). These were the earlier models with speed knobs (which BTW I actually like the look and feel of the old knobs better). In playing these guitars I noticed what I thought was a distinct difference between the older neck profile and mine. What is the real story? Has the neck profile been changed?