I just splurged and bought the Deluxe Crimping tool from Hansen Hobbies. I've been buying all of my servo connectors and wire from Chris since I started my build last year. I had the lower cost crimpers but was never really happy with the outcome. So took the plunge and WOW these make perfect crimps. Tried it on 22mm, 26mm and 28mm wire and simply outstanding results. There were times with the cheaper crimpers that I actually took time to add a bit of solder to make sure I had a good connection. Those days are gone. Check out the video on his site at http://www.hansenhobbies.com/. Lesson learned...buy once, pay a little more for a quality tool.