Probeably the best production cues out there. Mezz makes great shafts too.
The extension piece that screws onto the bumper is very handy.
My cue has the united joint wich is a 5/16 semi quick release jont.
A very stiff hit, especially combined with the hybrid II shaft, some softer with the WX900.
The wavy joint gives a softer hit with more feedback, but it's still a pretty firm hitting cue.
The Mezz break cues are great too.