The next one I buy will probably be a Beta Master Chrony (they take shot up units on trade ). A little hint -Use wooden dowels instead of the provided metal support rods for your skyscreens, they will save you from tearing a lot of expensive bits up when you're off a little on windage! You can also put a piece of heavy plexiglass or other suitable material at an angle in front of the unit to help guard against low shots.