Your Welcome.

I use 1.7 and have found no problems with it , compared to when I tried V2.
I also have a paid version of Symplify3D and still use 1.7. I must admit, that if I need support I go to simplify3D download the gcode and print it in 1.7

It's not that bad, mostly it runs OK , it just has it's little hiccups on occasions. I can live with it.

@mpirringer I have this up and running ok, but find the video to be somewhat jerky, could be the fact it is running inside a shed about 4 to 5 meters distance.

Have you checked the charger.

That sounds about right.
But I would also try to make an adjustable end stop for the Z axis, it helps a great deal.

well I built and rebuilt 3D printers, and CNC's, over the last few years, and have printed all the necessary parts out of PLA or PetG, with no fan and they turn out fine.
I grant you that if I try to print say a spire on a church model then that possibly would be a problem, but generally not, but that said I print everything with solid infill, that may make a difference.

I don't understand all of this, I have never had a fan attached to my printer and do not exhibit any of these problems, with either PLA or PetG.

great work, regards to all involved.

That's impressive.