Not much Liiga, mostly with the national teams. I don't think Liiga is good enough nowadays to form players straight to NHLers, there are too many teams there and not enough players to keep up the speed during games. As you wrote, Helenius played hockey with men as very young, he was good enough to take a spot on a top line, good for him. On the other hand there are young players that become Liiga players but there are a lot to still be developed in their game. Now Liiga is not a development league, those young players are learned how to manage and survive, to adapt to tactics so they can be a cost effecient solution, when they should be working on skating and such things.