While most mouthpieces have a throat depth of zero, where the cup runs directly into the backbore, it is also possible to place a parallel (cylindrical) section between these two features as shown in grey in the diagram below:

You may experiment with changing the throat bite in the interactive panel below:

To find out more about the effects of the changes you are making you may go over to About the Throat.

To move onto the next tutorial or back one step, please click the appropriate button below.

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