A fluid flow monitoring and evaluation system providing high accuracy for fluid flow systems having low volumes and high pressure includes fluid flow sensors mounted on positive displacement dispensing valves and a fluid flow monitor that received cycle signals from the fluid flow sensors and processes the cycle signals to determine fluid flow information. The power gain and frequency response of the transistor are improved by horizontally etching an area for the base region that is wider than the active emitter and collector regions. Driver pins are disposed within the casing. A third current mirror converts a differential output current in the first and second output conductors to a corresponding single-ended output voltage on the second output conductor. The elastomeric material may be formed from urethane or silicone foam that is at least partially collapsed, or from a similar material. The method concludes with receiving a write reply message from at least a second quorum of the storage devices indicating that the stripe block was successfully stored.