I tested Honda, Suzuki & Yamaha (never was much of a Kawasaki fan) before I bought my R6. I ride almost daily & have never felt any discomfort due to the ergonomics until I spent 5+ hours in the saddle on a long trip. I'm 5'8". What sold me was the handling & power & frankly I didn't pay much attention to ergonomics @ the time of purchase.
A better rider than I could probably make up any difference in the power/handling.
R6steve, twisty roads lead to twisted minds.