hey palurgee looks like you read my suggestion in your other thread about using the langes as a 2h weapon.
The answer lies somewhere betweens smooth's and mori's answers. I think the langes is supposed to be a flexible sword as opposed two a true 2handed weapon like a bastard sword.
imo the thrust is best used as a surprise move to catch opponent offguard. Using it alot leaves you open and vulnerable like other lolstabs.