The INTRO RESISTANCE sets the amout of thrusts for her to do the FIRST deepthroat and the THROAT RESISTANCE sets the DIFFICULTY of doing a deepthroat. For example, if you set low the Throat Resistance, it will be much easer for her to deepthroat, but if you set it high you'll have to move the mouse faster and more close to corner of the screen to make her do it. Of course that if the Intro Resistance is set high she will likely say more intro sentences, because it will take more time for her to fully deepthroat the cock, but this is only a collateral effect. Usually if we set high the Intro Resistance, the guy will most likely cum at least one time before she is able to deepthroat, and setting the Throat Resistance high it will make her throat really tight, making you have to thrust it more vigorously to make her deepthroat.