Methods and kits are provided for manipulating and predicting the reproductive capacity of a female subject. The tool holds and positions a suitable fiber optic connector, such as an ST-type Opti-Cam connector. This system enables a modulator to switch between the two streams generated by the two formatting modules without becoming desynchronized. The blades are equally distanced in relation to one another so as to allow the user to make uniform consistent slices of various food items in one quick and easy motion and to allow the user to mince, dice or chop many different food items as well. If the spam status of the email message is not known, then the pair elements of the cross product are used to lookup previously determined spam scores. A connector fitting is received within the passage, and a groove extends into the flexible wall adjacent the passage.