So I'm totally new to the whole RD scene and after reading a lot online I assumed go big or go home, so I purchased a 9500ix yesterday and have to say it looks very sturdy and sexy up on my windshield I haven't had a chance to detect any cops yet, but have had a couple false alarms that I'm hoping will go away after a couple of more days. Anyways I looked through the manual quickly when I got it but didn't really understand what POP and some of the other settings that were factory (off) were used for. Should I turn POP and those other settings on? What are everyone's positions on this? Also, does everyone prefer the expert mode, or should I keep it in the default as well since I'm a noob? Thanks!