Fralin's new Split-Blade pickups for Telecaster provide classic Tele tone without the hum, and with all the high-end clarity you expect from a traditional single coil. These are constructed like P-Bass pickups: two short coils are butted end-to-end to provide a humbucking pickup. Unlike most hum-canceling Tele pickups that use two full-length coils in an over/under or side-by-side configuration, with Fralin's approach only one coil senses the wound strings, while the other senses the plain strings. This "one coil per string" approach is of course the way that true single coils work.
Fralin chose to go with a blade design with magnets on the bottom of the pickup, rather than cylindrical magnets that extend through the coil. This provides for a more consistent magnetic field, and the blades cross each other in the center of the pickup to eliminate any drop-out of the signal as strings are bent across the center.
These pickups like being close to the strings and will not pull them out of tune. Designed for a 250k volume pot, they'll also work fine with a 500k volume pot for a brighter tone.