Screenshots you could only see with BOOM

Here you can directly see the difference of the limits
using the Boom engine instead of the Doom2 engine

Thanks to Joachim Otahal for all these screenshots and comments!
Pictures from Lee Killough's Conduits.wad

DOOM2.EXE

BOOM.EXE

I could not use Fullscreen with Doom2 or the screenshot of after-switch-pressing would have been a lot more difficult to create due to instant visplane overflow.

However, turning left after doing the Screenshot gave me the Visplane Overflow with Doom2.
Here is the proof.  Look familiar?