In this video, Billy Penn, of 300guitars.com, demonstrates how to adjust the truss rod on a Fender vintage-style neck where access to the truss rod is in the heel of the neck:
I’ve been setting up my own guitars for years, and I learned a number of things from watching Billy’s video. For example, I’ve never thought of using a capo to hold the strings in place, nor have I thought of using painter’s tape to hold the neck plate in place. Two pieces of knowledge I put into place last night to set up one of my Teles.
(via Anthony Stauffer)