Viking Siege Carbon Fiber Performance 12.25mm Pool Cue Shaft - 5/16 x 14Viking put a new spin on carbon fiber shafts when they created the Viking Siege Carbon Fiber performance Pool Cue Shaft. Until now, the billiard industry has relied on a carbon fiber shaft construction process of wrapping thin sheets of resin pre impregnated carbon fiber around a steel form and overlapping the individual sheets as the diameter and taper of the shaft varies. This process of overlapping the sheets leaves undesired variations in wall