I've been toying with the idea of angling my outer two sensors of my trihead setup outward, or getting a 4th sensor in addition to the angling. After brainstorming with mrkookm and making some computer mockups I really think this could work and make a car damn near bullet proof against off axis shots.
Numbers are in feet, and darker color means more signal strength.
Current trihead vs trihead with outer two sensors angled 10 degrees out
4 heads with outer two angled out 25 degrees
Only testing will tell if it will work, hell communism looked great on paper and we all know how that turned out.