Hello again friend. Great to hear that you got it all working 
Looks like you’re using virtual NVMe for the boot volumes and a physical disk in passthrough mode for node storage. This is a good setup.
Depending on how large the nodes are (used space, not allocated) 4GB on a Windows VM could be too low. If Windows decides to upgrade itself (or other processes, for that matter), the RAM could have a high bassline usage. With the increased storage node load due to performance testing, the strain on your HDDs are significantly increased. If HDDs cannot follow with the order queue, RAM will rapidly start to fill up, which could be the culprit of your BSOD.
That rasies the critical question: What harddisk(s) are you running?
Additionally, to combat bassline RAM usage, you could run the debloat script below on your VMs,
The Ultimate Windows Utility (christitus.com), try assigning 5GB vRAM instead of 4 to your VMs. Both would be best.
Kind regards.