TESTERS ANNOUNCED! SKYCADDIE SX400 GPS in TESTERS WANTED Posted December 14, 2019 Don from Fairview, PA I use a TecTecTec rangefinder. I am not a big fan of it because it is hard to get the yardages. I think the Skycaddie is a much better way to get yardages especially if you are playing a new course. Technology speeds up play and has helped me hit more greens. I would love to test this out as we are going to Arizona for 3 months. That would be a perfect place to test this.