ALP parking sensor and STIR Plus integration

[pimp-boy]

Hi BRD and others, I just finished installing the ALP with 2 front sensors and also the ALG with STiR+ integration. I never registered, but the firmware is on 5.1.4 and voice packs for the HiFi are all updated and installed. Couple of questions.

1. I was testing out the parking sensors. How far do they work? It seems it only works up to 2 feet or so even when the setting is on 8. Is that normal?

2. I disabled X and K band for the STiR+. I selected wide KA and POP, TSR and whatever RDR is. I drove around the San Jose, Ca. area around grocery stores and freeway, and not once did the radar detector go off. The receiver module is behind the Tesla model S plastic bumper that pops off. Either this system has really great filtering from false signals or something is wrong? Is there a way to test whether this system detects whether it sees the receiver?

Thanks for your help.