A Liberty 6 speed sometimes described as a "5+1" as it's not considered a "true" STI 6 speed, for technical reasons, arguably around its toughness and durability in direct comparison to a 6 speed out of an 05 STI for example.

May or may not be true, but I am keen to understand the differences for everyone involved. From what I can tell, the only difference on the Liberty 6 speed is that it has a taller 5th and 6th for cruising reasons.