One would think the corrections you make would be consistent yes, but that is not necessarily true. Couple of things here, first, not having weather data at your shooting position can definately have an impact on the solution, especially if the station data is some distance away. Elevation can be significanty different, at least in my part of the country. Same with temperature which shooter needs to calculate the speed of sound at your location which it then uses in its solution calculation. Humidity, etc, all make a difference. Atmospherics play enough of an importent role that I definately would suggest you consider a lower end kestral that will give you DA, these are not that expensive if you just get a basic model. Besides having wind data at your position is always nice (it's not the "end all be all" however but it helps). Secondly, before I got my magnitospeed, I found that using shooters MV "tweaker" caused more problems than it solved. The MS is so accurate in my experience that I found making slight adjustment to the projectile bc to give more consistent results and therefore to rely more on an accurate MV from the MS. Many bullet manufacturers are overly optimistic (and that's putting it mildly) in the labeling of their bullets bc and this can play some havoc with consistent solutions especilly the further out you go. Thirdly, consider shooter error obviously. One of the ways to get "through the weeds" on that is to let another shooter shoot your solution and observe the results, you might be surprised once in awhile. Lastly, you need to consider the SD of your ammo, if it is over single digits, your vertical spread can fluctuate quite a bit leading one to believe their solution is inaccurate as well. Not saying solvers are infallible because they are. If you load 3 solvers onto your device, input the exact same data, more often than not you'll get 3 different solutions, lol. That's where your DOPE plays the role and we haven't discussed all the other variables that can affect your downrange hits! I'm familiar enough with the two solvers I use to know how to extrapolate a solution between the two when they don't agree. Keeps it interesting! Hope a little bit of this helps anyway......