Some additional thoughts designed to help you. Vape and enjoy your new VS 40. Period. Tune for the flavor of your vape, your required vapor production, and the various lengths of your draws throughout the day. Using a dripper, the TP warning will appear as your wick begins to go dry. An actionable event displayed on the screen which tells you to drip more juice. That's the way it's supposed to work and does work. No need for you to engage in any contrived and specious tests to see if your device is defective. From reading your posts it appears to function exactly as Brandon and John desgined the 40. On the other hand IF you get a garbled/wonky screen then by all means post. In this case that occurrence still does not mean it's a defective 40. In short, enjoy and vape.
Ignore the following tangents in this thread:
Attempt to make the 40 do something it was not designed to do
Contrived "tests" which produce specious results
Wild and unsubstantiated "connecting the dots" myths
Posts from folks who don't even own a 40
Good luck and don't hesitate to send me a PM if the "noise" in this 50 page thread confuses you. If I don't know the answer I can always ask an authoritive source.
EDIT: Ditto to my fellow early adopter @HolmanGT. AND, NO ONE on the face of the planet earth except Evolv can tell you exactly and precisely what the incidence of failure of the 40 is. Period. Ignore all posts that attempt to quantify (with numbers and or percents) this issue unless they are made by Evolv.
Look, I don't want to be argumentative, but unless I'm reading your post wrong, and that's entirely possible, I'm afraid I have to disagree with the overall sentiment.
I get it. You got a perfectly working good dna40, or several of them. Congrats, please accept my official pat on the back.
But not everyone did, do we have exact numbers? Of course not. But let's be honest about it. Evolv had a manufacturing defect. And that defect is causing a very real and very serious problem for those who are unfortunate enough to receive boards with it. How many people? Who knows, but just the number of people in this post with not just one but in some cases multiple bad dna40s combined with all the info you can find on reddit and other vape boards seems to indicate that it's a pretty high figure. I was one of those numbers.
You have to understand that it may seem entirely different for you perched up there on your post with your working dna40s, but for someone like me, who ordered it, took the time to install it, then had nothing but trouble with it, it's a little hard to be happy about that. Not only was my time wasted, but I now have paid $10 extra for something (because evolv doesn't pay for you to rma something back to them) and have now waited over 2 weeks since sending it back to them with no replacement nor word from them. And in the mean time they've been completely silent about the issue. To get a functioning dna40 and not have to wait 2+ weeks to get it, I had to purchase a second board. My emails to evolv asking for an update on the status of my rma have went unanswered. My original email to them asking about an advanced replacement option went unanswered. As bad as cloupor is, when they had mods burning up wiring because they had people trying to run builds drawing 15 or 20A on a device clearly specd for 10A and they didn't include software limiting, they were paypal'ing complete refunds to people immediately upon receipt on a simple email with their receipt attached. They screwed up and they did the best they could to fix it. That's a Chinese company with a marginal reputation at best. This is evolv. Someone I would expect to have a slightly higher caliber of dealing with something.
I don't think it's too much to ask that a product I buy works as described. And when I'm constantly getting dry burnt hits, more than I ever did with any other device out of one that supposedly eliminates that, I don't think it's out of line to expect me to be a little upset about it.
The intent of these posts isn't to create fear mongering and get people not to purchase the product. My second board works, perfectly, and I'm thankful for that, I could have been someone like thekiwi who got 4 out of 5 bad. I would have given up long before that, and so would the average person.
And if someone is struggling with getting harsh dry hits our other anomalies, how can you fault them for trying to isolate what is causing the problem and see if others with good or bad boards can reproduce it? Especially when the behavior they are describing exactly described the symptoms produced by a bad board sans the screen glitch?
I'm not sitting here calling you a fanboy, but you seem to automatically prescribe user error to any issues anyone has despite the fact that on several occasions the screen glitch has showed itself as well. Do you know how frustrating that must be for someone who is being meticulous about the way they are building to ensure everything is perfect, getting a behavior that clearly is not normal, then being told that it's their fault? Can user error be the cause in some cases? Sure, but let's try to help them determine that fact, ask questions and try to determine the real cause rather than just sitting back with multiple working dna40s pointing the finger and telling them it's all their fault because obviously if yours works there isn't a problem with any of them.
It reminds me of the old ring of death issue with the xbox. People with working units were so quick to jump on the Microsoft bandwagon and defend them to the death denying that there could be so many bad units when theirs worked fine.
You're right, nobody can tell us how many good versus bad units have been released, but that works both ways. For all we know, it's not is with the bad luck, but you with the good luck. It's no more right for you to speculate that there are very few bad units out there than it would be for us to speculate that there are very working units out there.