RE: re-serving
No IMN, the 2x4 doesn't work that way anymore. There is a lot more to serving the ends. You have to use the right serving, and it has to be tight, and I mean tight. The string has to be stretched taut also. It wouldn't hurt to get some products from BCY or Brownell for serving applications. The major problem with serving today is the separation you get where the cable rolls over the cam lube, and eliminating the slippage of the center serving.