When IronMind® announced the revised language for the fourth rule for certification on the No. 3 and No. 4 Captains of Crush® grippers, we might have failed to explain a couple of things clearly enough.
For starters, some people have asked which dimension of the credit card is being used: the edge (thickness), the long side (length) or the narrow side (width). We are referring to the narrow side (a little over two inches/five centimeters).
Similarly, there have been questions about the gripster losing momentum on his official squeeze because there is a concern that we are requiring a cumbersome measurement process that will be both time-consuming and distracting.
Actually, you should be able to do this in a flash (sliding the card in and out) and if you want to hold the gripper in your hand unloaded, verify the distance with the card, and then fire away at it without any set, that is fine, too. You can also adjust your grip once you have been given the start signal, as long as there is no contact from the other hand, or the violation of any other rule, in the process.