Force Sensitive Resistor Pressure Sensor Adjustment

I have been working with several force sensitive resistors made by Interlink Electronics for the past few months. I really like the FSRs in general because they seem to be pretty durable as long as you don't tear them. The only issue I have had with the particular units I am working with (Sparkfun Electronics SKU:SEN-09375) is that they require a minimum amount of pressure in order to start activating. I wanted some way to make them extremely sensitive, so I ended up using some screws and a piece of plastic in order to pretention the units. It works pretty well. It would probably work better if I were using something that covered the sensor more completely.

After getting the sensors mounted and attempting to use them in my soft message system I determined that trying to find three unique pressure points inside of a soft object doesn't work at all. I have a few ideas but am not sure if I will get the desired effect in my final application.