One of the interesting things about the Once Removed concept is that there is not one but at least six major types of Once Removed situations based on what dancers are really doing during Once Removed calls. These Once Removed situation types are as follows:

• Dancing the call Once Removed without any take outs.
• Doing the call without taking it out and then restoring the Once Removedness of the formation at the conclusion of the call where the final formation is tidal.
• Beginning the call Once Removed, taking the call out along the formation axis, doing the call and then restoring the Once Removedness of the formation at the conclusion of the call where the final formation is tidal.
• Beginning the call Once Removed, taking out the Column formation along the formation axis at the beginning of the call, doing the call and then restoring the Once Removedness at the end of the call.
• Taking each Once Removed group away from the formation axis at the beginning of the call, doing the call and then restoring the Once Removedness at the end of the call.
• Dancing the call Once Removed with or without take outs where the formation axis changes at the end of the call. If the formation axis changes there is no movement required at the end of the call to restore the Once Removedness of the formation.

These six types of Once Removed situations cover most of what you may expect to see on a C2 or C3A floor. There are other situations that you may encounter.

• Initially Once removed calls. See the Initially Once Removed Section for a discussion of these calls.
• Once Removed calls that don't have a generally recognized approach to doing them. These calls are rarely used and use strategies that are peculiar to the calls. These calls require memorization to execute them successfully.

These types of Once Removed situations are discussed in some detail on the folloing pages.