RE: ROO c.g.
Yes, I hold too a lot of up elevator on the take off run, mostly because I want to make the take off as short as possible to minimize the wear out of the landing gear... (more than once I saw a tire
running down the entire strip just at the takeoff, nor to mention the landing, haha) a nice feature
of the high trust line of the roo is that you simply can't overotate it, so you only need to hold up
full elevator and see the beast take off... easy as that.