Need some input folks. I usually run Harts or Bart's on my rigs but I need some real world reviews about the barrels that Jim sells. Are the CBI's better than the Shilen Selects? Or Vise Versa? Is it worth spending the extra cash to get a blank and have it chambered? I'm still tossing around some calibers but wanted to see what's up with these Savage Pre-Fits??