I made a video showing small differences in some killer teleport powers using Dark Sense.

ShadowCyrax

https://youtu.be/b0MTiRFiMf0

the video starts out explaining what Dark Sense does, and I use it's perk activation rules to determine what killer powers; mainly teleports, are fast and invisible physical movments across the map, and which ones are actual teleports. I know it's long, but I wanted to test everything I could think off that would fit.