I use the "rest-stroke" pull-off as a teaching aid, but rarely use it in performance. As Maestro Kenyon writes, you must have the "tirando" (free-stroke) type.
-All the best,
Dr. Lawrence A. McDonald, D.M.A., Art Kaplan Fellow
Author of The Conservatory Tutor for Guitar
2008 Michael Thames Cd/Br
Royal Conservatory Advanced Guitar Instructor
Royal Conservatory Advanced Theory Instructor