It's already cranked down to to point of deforming the ball.
It's pretty much just a matter of weight. B size (1") balls are rated to hold 2lbs and my setup is 2.55lbs with the arm almost fully extended. Add the additional weight gained from vibrations/movement during riding and it's a setup destined to fail that's not the design's fault.
The C size (1.5") is rated for 4lbs, so hopefully it will help. Push comes to shove, I can return the C size (one good thing about Amazon is the return policy) and get the D size (2.25") which is rated for 6lbs.
I've run into a similar issue with using Doubletake's mirrors. I had to crank them down so hard to keep them from moving due to wind pressure that they deformed the ball mount. Now when I adjust the mirrors, they just slip back into the deformed groves. I've switched back to the OEM mirrors for winter (they work better with my hippo hands anyways) and will reconsider using them with new ball mounts come spring.
It's pretty much just a matter of weight. B size (1") balls are rated to hold 2lbs and my setup is 2.55lbs with the arm almost fully extended. Add the additional weight gained from vibrations/movement during riding and it's a setup destined to fail that's not the design's fault.
The C size (1.5") is rated for 4lbs, so hopefully it will help. Push comes to shove, I can return the C size (one good thing about Amazon is the return policy) and get the D size (2.25") which is rated for 6lbs.
I've run into a similar issue with using Doubletake's mirrors. I had to crank them down so hard to keep them from moving due to wind pressure that they deformed the ball mount. Now when I adjust the mirrors, they just slip back into the deformed groves. I've switched back to the OEM mirrors for winter (they work better with my hippo hands anyways) and will reconsider using them with new ball mounts come spring.