There are a handful of guys at the clubs in my area who love their DSMR setups, however some have admitted a rare glitch from time to time. I tested DSMR with the DX2E a couple years ago and experienced glitching during a practice session on a large open track, it would consistently glitch in a far corner, but I was able to correct it by changing position on the driver stand and elevating the Tx in the air above my head, it appeared to be a line of sight issue as there was a rather large step up jump that was partially blocking that section of track, although I could see the car from where I was standing, if I had lowered my head to my waist (where I was holding the radio) then the radio was blocked from the line of sight and it would glitch every time in that far corner.