Neither....with the GL version of VPX, I am selecting Magneta/Green for the viewing option.
I am using TriOviz glasses and they work really well, obviously not on all tables, but it keeps the colour superbly.
I tried some old cardboard glasses and although looked good, there was no colour at all, so purchased the TriOviz glasses on eBay after some research.
I also tried the ReShade add-on with the TriOviz option but I did not find it as good as the inbuilt option in the latest GL VPX
Some are great at showing the depth of the table and some showing the 3D effects of the ramps, etc
Tables I have found which really benefit are:
Batman 66
Guardians of the Galaxy
Jokerz
Judge Dredd
Simpsons Pinball Party
Few others as well I can't remember, GotG is probably the standout however.