As with any different unit unless identical you MUST do your Homework...yes it takes time and many times you will find better, sounds, styles, fx, etc, when doing so, it's all part of the fun of setting up a keyboard for your needs. It never ends even after you think your finished until tested at full performance volume on stage a few times to correct the overall sound and parts etc, etc, thru your pa system ..that said did you buy the Pa4x, or? as you will have to do the same with the Pa4x also....its all part of the fun of being a musician..