Sensor questions

[FRC2272]

Hello,
I have two sensor questions:

1) In response to an early email blast, I requested the gyro and accelerometer, but I still haven't received them. I sent my request on Jan 6. Have these items been sent out? When might we expect them?

2) Are we allowed to use other kinds of sensors other than the gyro, the accelerometer and the gear tooth sensor? For instance, can we use ultrasonic or infrared range finders?

I've read through an awful lot of documentation and I'm not entirely clear on these issues.

[GDC]

In response to question #1, all sensors will have been shipped by Monday, January 29. If you do not receive the accelerometer/gyro boards by February 1, please contact FRCparts@usfirst.org.

In response to question #2, additional sensors to those provided in the kit are permitted. However, sensors not provided with the Kit of Parts should be evaluated using <R47> and <R48> and installed per <R72>.