Yes, that is what I'm asking.  If both booms had Norac without roll control (or Raven AutoBoom), would you be able to consistantly run the same speed with a wider boom as you could the narrower one?  I would expect the answer to be "no" if it were terraces or extremely undulating ground, but how would it be on moderately rolling ground?

If the booms weren't set up the same, I don't think it would be a fair comparison.