I`ve had 4 x Regen`s now, one every 400 miles, fifth one not far away.Only noticed the "Burning Smell" twice, the second one being less than the first, so I reckon it`s just the "newness" of the components that causes this for the first couple of times, then whatever it is that stinks has burnt off, and you dont notice it so much, if at all. Only clues I got on my 3rd & 4th Regen`s,was the much reducedInstant Fuel Consumption, and then the 0.7/9 gph Consumption reading when stationary, and ticking over for a short time, whilst in traffic. I`m not sure if I didn`t detect a bit of a drop in performance too when I pushed it a bit, or whether this was just psychological, as I knew that the Regen was in progress ????. Oh, and John, (Antarius), you will only see the 999.9 Instant Consumption Reading, when coasting in gear, no throttle applied, and a Regen is NOT taking place !!.