Share your real knowledge on cartridge arm matchin

"Gonners" have real knowledge on cartridge parameters to arm matching. Share the reasons the match works well so we can learn something new. Make the best tone arm match for these cartridges:

Air Tight PC-1
Clearaudio (their top cartridge - name escapes me now)
Dynavector DRT XV-1S or mono
Koetsu Stone Bodies
Lyra Titan
Miyabi/47

BTW: If I missed your favorite cartridge add it and the matching tone arm.