-2.0 or worse may not enter 1.0 systems
-2.5 or worse may not enter 0.9 systems
-3.0 or worse may not enter 0.8 systems
-3.5 or worse may not enter 0.7 systems
-4.0 or worse may not enter 0.6 systems
-4.5 or worse may not enter 0.5 systems

Modules/rigs
1 / 1.00 :
2 / 0.87 :
3 / 0.57 :
4 / 0.28