Your exit depends on your timing and launch velocities and rotations. The correct timing depends on your location in the floater line up and how the exit is proceeding. The timing of floaters' exits depends on motion, not sounds. Forget about listening for exit counts. Think about flying exits.
Floaters launch out sideways from the aircraft.
This direction of launch makes room for the floaters aft of your position. Your launch must be further out sideways the more forward you are. Your sideways speed needs to increase as your floater position moves forward. The further forward you are the more aggressive you must be in your launch. It is also possible to rotate your body about any axis as you leave.