This is exact time, dragy is not good becouse u can do downhill and dragy will showe time which is invalid without correcrion which u only can do on racelogic. So draggy is just show off tool , only if u use on straight road , but seen lots of posts slope -0.6-0.80 etc that is way off accurate. My car is doing 7.3 on vbox slope -0.85 which is with correction 7.89 . Huge difference so yes all guys need to buy vbox and do correction to be accurate
Racelogic do not endorse a correction tool though?
In addition, the whole concept of running on a 0% gradient is absolutely ridiculous as there are zero roads on planet earth that will have a perfect 0 gradient on them (What would happen with rain water?)
The 1% slope limitation of the Dragy is a very narrow window and infact does not make anywhere near the difference that you state it will, a 1% downwards gradient is tiny. Even on what looks to be a straight bit of tarmac, you can fall foul of a negative 1% gradient, it's certainly not clear to the naked eye.
I remember doing a test a while back of a launch down a 7% gradient on the 0-100mph and the time changed by 3/10 from what it was on the flat. 7% is huge, it's a very noticeable downward slope. 1% limitation is not noticeable in the slightest.
Dragy have done well to adopt the 1% limitation as it either passes or it fails, too many people were launching downhills, taking a picture of their pbox display and passing it off as accurate. In addition to cheating by selecting 1 foot rollout to skew the figures along with launching down hills, the figures some people were posting were comical.
You've posted a picture of your pbox display but haven't posted anything else to back it up, like start height and end height etc? When posting a picture of my pbox display, I would always plot my chart in vbox tools with the height charts selected (1) Proves 1ft rollout selection (2) Plotted with height start and finish. (3) Make the calculation for gradient yourself.
What you get from Dragy is everyone working within the same very tight boundaries, unlike the pbox where people just take pictures of their displays and no other info about gradient and 1ft is provided.
I have both the Vbox (Pbox) and the Dragy. This verification tool you talk of (vbox verify? DB scanner?) is not racelogic endorsed or backed, who is to say that this tool itself is accurate?
Sorry but what Dragy have done is very welcome to the car tuning community, they've bettered the vbox(pbox) in every segment and brought it into the 21st century. The Pbox unit itself, its functions, its displays etc belong in the 00's. Dragy = welcome to 2018.