I kinda like the sideways mount too. Even more now that I have seen how important tank position can be. Would have been nice for WM to have pointed this out in the instructions befor I cut me cowling like the book said. But I guess if you learn something from it the mistake was worth it. Just a note for models makers. look at the Aeroworks Edge 540. They not only went with sideways, they put a diagonal slant to fit the cowl without alot of bucthering. They even offered options for other mounts with engine and tank aligned in all of them. I call that quality in a kit, even an ARF.