Ok, apparently a Mod created this thread because I had posted in an old thread (didn't notice it was old, it was one the first ones on the software forum, guys), so I better edit this. As you can see from my other thread, I'm choosing between 3 pens and before I reach any conclusion I've thought it might be good to try them on something else than windows whiteboard. I need a program or app for Windows 10, which is considered reliable so that I can be sure that the problems of jitter and pressure sensitivity are really coming from the pen and not from the software. What would you suggest? Thanks!