Well, the more I listen to the T4 the more excited I am as to what it offers, I mean the sound is just incredible, tHE MANY MORE available styles, addons, almost has me tilting my hand back to the Yammy, as far as the PA3X well the demo's at NAMM were disgraceful and never got over the LED problems not that they fixed them it was that they denied the problem for a long time, until the hand was forced. Anyway it looked like mutton done up as chicken at NAMM