Hello - my naive reading of http://www.hitechnic.com/blog/wp-con...cification.pdf, combined with my naive understanding that the PWM (pulse-width-modulator) signal cables from the controller to the servos are essentially uni-directional, and my understanding that the servos lack an embedded rotary shaft encoder, suggests to me that reading the servo (if it is possible) would just tell you what value you most recently wrote.
http://ftcforum.usfirst.org/showthread.php?4552-Reading-Legacy-servo-position
It's probably worth checking if we have any newer/different servo's if they are able to report position back.