It's the first inch of the pole section that wears so new shims and springs wouldn't make any difference. Our SLX's start spinning on the first and second sections after about 5 months of heavy use. They then go on Ebay and new ones are purchased. Looking forward to trying a Phantom.
This is exactly why new springs and shims would work- do you not understand the function of smart clamps?
The shim hasn't worn at all. The first inch of the pole has, so over the first five or six months of the poles life the guys are constantly adjusted the clamp screw until there is no adjustment left. I'm just telling you about our experiences with the SLX. Your experience might be different. Would I buy another SLX? Yes if the Phantom pole is no better after we try it.