The three note per string sweeping technique is actually called "economy picking". If you think it's a bad idea to take this method - have a listen to Frank Gambale!!! I've used the technique in moderation for a few years now and have found it useful at times. I understand that it's difficult for someone to learn something new that, quite honestly, arrives at the same conclusion as another, more popular technique. My advice...touch on the subject. If it works for you push it a little further. If you can see it as a dead end technique that will lead you nowhere, push it to the back of your arsenal and dig it up at a llater date when you're personal style and tastes have changed. Maybe, after the time lapse you will find that you have a different vision and direction for the technique. I would advise you to try everything that comes down the pike at least once. Way back in 78'..."What in the world is finger tapping? And why would you want to do it?" Before that "What in the world is pinch harmonics and why would you want to do it?" "What in the world is sweep picking and why would you want to do it?" "Why would you wanna play 240 BPM phrygian dominant scales?"

My point is that everyone plays differently. Every has different tastes and needs. It takes someone daring to push the edge of the envelope. That "push" can never happen if you play within the confinements of what everyone else has played before...