Columbia Pulse = Crunch.
I disagree, Crunch = a lower rg Ti Hawk.
If one looks at the picture of the ceramaslam core from AMF.
AMF slam, MJ slam, Nighthawk SPT, Nighthawk Revenge, Firehawk, Hawk, etc.
This ball morphed into the Ti Hawk and Firehawk Super/c by the addition of a ti nugget in the center.
The Crunch looks exactly the same with a bigger nugget and a lower rg as the Ti Hawk.
REgards,
Luckylefty