This project now has 3 FSR sensors connected to the Arduino, with the data being transferred to the Pi. In the end I plan on having 5 in total. 

One of the things that cropped up when I started to add more sensors, was the voltage leak between the analog Pins of the Arduino. A common problem I found for alot of people with a fairly simple solution:

http://forum.arduino.cc/index.php?topic=197855.0

Solved by using a 10k phm feedback resistor for each sensor resulted in the minimal voltage leakage between the sensors. Although this did affect the sensitivity of the sensors, as discussed before, changing the feedback resistor can have this affect, it is still sensitive enough - especially for the finger pinching glove method that I am following now.