there's a test feature on the cops menu on the IR3's and A4's cant remember about the speeds but it is 1:30am, use the drop test to see if its working and to adjust the sensitivity any probs PM me
There's also a manual online at www.angel-owners.com. Go to the test feature (I think you just scroll through 'til you get to TCOPS), it will say DROPPB, drop a ball in the breach. If it says PASS, then COPS is working.