Airflo Info: When Tim Rajeff and Dec Hogan joined forces to create the taper for the Delta Spey, we new we were onto something special. That was five years ago and whilst changes have been made - improved PolyFuse XT coatings, reduced diameter running lines, not to mention the unrivalled casting control that comes with Power Core - this same taper has stood the test of time and is destined to go into Spey casting history as a classic.