Don’t even think about hauling on the 15 to and from Vegas without a good radar detector and a second pair of eyes looking overhead and to the rear. This stretch of the 15 has it all: X-band drones (meant to lock up cheap radar detectors while officers shoot at you with Ka-band radar or LIDAR), K-band trailers, a photo enforcement testing area (although current law outlaws speed automated enforcement), and occasional use of an airplane (VASCAR, although it too is illegal as per CVC 40802(a)(1)). Be also aware of the stealth Camaros. I saw three of them over a weekend, and it appears that their victims were either ill-equipped or caught off-guard: a family van and two sport compacts.