whatever you do, don't let it rub. you can let it cross, that shouldn't be a problem BUT... I had the Zen 50 and it didn't have that problem. Are you sure that you are putting it in correctly? Could you feasibly turn the servo around? Unfortunately I sold my plane but I remember the kit went together like LEGO and the wings were strong as oxens.

Great pattern plane for pattern... not light... but perfect for IMAC stuff.