Few blurbs I’ve noticed on Jumping in the B5 Universe:
1) Narn (at least) ships lose the ability to use most systems during hyperspace transition (From: Chasing Shadows?). Other ships may experience this effect as well, like re-entry black-outs.
2) Babylon 5 station and the Minbari (maybe others) have been shown to be able to detect objects in very near hyperspace. Minbari/Whitestars have also detected objects in real-space from hyperspace, again at very close range.
3) You can navigate off a beacon route (Third Space). Plus how would beings in the B5 Universe be able to explore at all given the navigation restrictions of needing a lot of beacons.
Keep in mind I haven’t seen all of the B5 episodes, so some of this may have been in script errors or once offs.
Phoenix...
"I'm not saying there should be capital punishment for stupidity,
but maybe we should just remove all the safety lables and let nature take it's course"
"A Place For Everything & Nothing In It's Place"