Thanks a lot for the replies. As far as I understood, setting up the elevator on this plane is going to be a challenge. Well, I did not decided yet what set up I am going to use, so I guess I will make something up when I will get to it. Making the bellcrank it seems for me more complicated than two servos in the tail. Also, the reason why I want this type of set up it’s because I have Extreme Flight Yak and it has two servos in the tail and I just love it. Guys if you have a pictures of the plane with OS 120 please post it here, I will use it as a reference when I start mounting the engine and cutting cowl. Thank a bunch to all of you.