Sorry I’ve only just realised I’ve hijacked the thread. Slarm originally asked about the clear PETG I’m more interested in the VFA’s. I got confused and thought it was the one I’d started. 
Unfortunately not that I’m aware of. Orca has a specific set of calibration tools and the VFA tower is one of them. It basically changes speeds at specific heights so you can see which print speeds are most affected. Not to worry, I still appreciate your help.
I have orcaslicer but never used it yet since there’s rumors bambu is going to lock out 3rd party software. So I can try it here when this print finishes.
Interesting seeing this work while printing. Have not seen a print quality decrease yet but am only like layer 170.
Many thanks for taking the time to do that, it’s really appreciated. Seems the A1 still suffers from VFA’s at the lower speeds, but definitely looks better than my X1c. These types of tests show the real issues of a printer, so if they are passable then normal prints should look good.