A method for monitoring movements of a user using a flexible circuit member. The flexible circuit member is fault tolerant. The method may include using extra and/or redundant traces as well as storing data on RAM if the flash memory fails or if some or all trace connections between the processor and flash memory fail. Data may or may not be stored on the RAM containing less fidelity. Lower fidelity data may be used to alleviate issues arising if the RAM has less storage capacity than the flash memory.