Bluebird & all. I agree that the Yamaha arranger keys are noticeable smaller than any acoustic piano, but then again, the PSR & Tyros are not even marketed as pianos. After all, a much BIGGER difference is the key 'feel' of a synth action keyboard to a fully weighted action of an acoustic grand piano. I'm sure you guys realize that the playing technique required of acoustic piano playing is entirely different than for playing on synth action keys. Once you accept this fact, you'll quickly learn to adapt between the different keyboards, even the slightly smaller Yamaha PSR keys. I've learned to adapt and feel quite comfortable with their present size as well as easily adjust back and forth between playing my steinway 7' acoustic grand and the tyros. It's really no different than adapting to driving 2 cars: a subcompact and a full sized SUV. - Scott