What are the differences between 6.0 and 6.5? The main differences between the Project X 6.0 and 6.5 is the weight and the stiffness. The 6.5 is heavier and stiffer than the 6.0.
| Project X 6.0 | Project X 6.5 | |
| Weight | 120 grams | 125 grams |
| Flex | Regular | Stiff |
| Length | 37 – 41 | 37 – 41 |
| Launch | Low | Low |
| USGA Legal | Yes | Yes |
Weight: Project X 6.0 vs 6.5
To begin, the first difference between the 6.0 and 6.5 is the weight. The 6.0 weighs 120 g and the 6.5 weighs 125 g. This means that there is a 5 g difference between the two. This is not a substantial difference, however, it could be good to go over the general pros and cons of light and heavy shafts.
Generally speaking, with a lighter shaft you will be able to generate more swing speed, that’s more distance. However it is easier to control a heavier shaft. So if you’re looking to increase your distance, then the lighter shaft will be better for you, but if you are looking to increase your accuracy then the heavier shaft is for you.
Flex: Project X 6.0 vs 6.5
The next difference between these two is the flex. The 6.0 comes with regular flex and the 6.5 comes with stiff flex. Regular flex is better for players with average swing speed and stiff flex is better for players who have above average swing speeds. Depending on what type of swing speed you have will ultimately decide which shaft is better for you.
Length: Project X 6.0 vs 6.5
One of the first similarities between the 6.0 and 6.5 is the length options. Both have a general range of 37 inches to 41 inches. This is pretty standard for shaft length.
Something to keep in mind is that the USGA has a limit of 46 inches for club wax. Any golf club that exceeds this limit is considered illegal. Neither of the 6.0 nor the 6.5 exceed the limit so they are considered legal in terms of their length.
Launch: Project X 6.0 vs 6.5
Another similarity between these two is there a launch angle. Both have a low launch angle. This means that they are both designed to keep the ball low on impact. This is great if you want to get a lot more distance and roll on your ball.
Because there is no difference between these two in terms of their launch, you will be getting the same type of launch from both.
USGA Legal: Project X 6.0 vs 6.5
Another thing to keep in mind is that the USGA has very strict equipment rules. Any piece of equipment that breaks one of these rules is ultimately considered illegal to use. According to the USGA, both of the 6.0 and 6.5 are considered legal to use for any casual, I level amateur, or professional golf outings.