I use a Q702. Mostly in tablet form. I have n-tri g version 18.104.22.168.0.43 installed.
I write with the pen in OneNote most of the time as it's a major part of my job.
My problem is that when writing in OneNote the pen does not always work properly. When I take the pen off the screen to move to a new letter or word the "ink" still appears on OneNote and I end up with a scrawl of joined up writing. The ink also seems to have a heavier weight than when the pen is working normally. I have turned off the variable ink thickness and it made no difference.
This is intermittent too, sometimes it behaves like this, sometimes it doesn't. Restarting the device makes no difference to this.
There are a few other users of the Q702 in my establishment and about 1/5 of them have this problem (3 tablets).