One-third the weight of steel, the Stingray aluminum space frame is 100 pounds (45 kilograms) lighter than its predecessor. The weight savings make Stingray light and lean, ready to take on any road with precision.
Baby Swing Cost. Typical costs: 1  Standard swings range from $60 to $140, depending on the types of features offered.  Portable or travel swings, which tend to be less expensive than standard swings since they offer fewer features, run from $40 to $80.
Hit at least 10 shots and determine the average speed of all the swings. Consult a conversion chart, which will indicate the ideal shaft flex for your swing speed. These are some suggested conversions: 85 mph or less -- amateur (A) flex. 80-95 mph -- regular (R) flex. 90-105 mph -- stiff (S) flex.