Posted by Mick Henshall on 24/05/2017 10:26:31:
So is the general consensus that the wedge variety is better than the piston type ?
Mick
Theoretically yes. Depends on who you listen to, what you see, what your experience is with the quality of the product you have in hand, your budget. Practically, we sell both in equal measure, when you compare 100/200 piston type with 111/222 wedge type. Industry has been buying the 100/200 piston types for as long as we have been selling these, and we have been selling the piston type for longer than we have the wedge type. If it is good enough for them, then it should be good enough for most… subject to quality…
We are still happy to sell the wedge types too. 
Ketan at ARC.