I'lll post up my -5 result later when Photobucket is back up (in my showcase below if I forget), but Ambi3nce's -9 result looks very similar to my -5 result.
Main difference looks to be power band is on 300-500rpm sooner, and ~15% more peak torque ! (520 vs 605)
Same boost, same peak power, same ecu, same cams, same fuel, same workshop, same tuner/dyno.
...not sure if you could get much closer in terms of setup for comparison?
Headstuds & more boost should widen the gap between -5 & -9s in the top end though.