Yeah, ive seen the Acoustic piano hack. Apparently it’s slightly lower quality compared to the others, but very useful.
Even just a CP Piano is fine. Ive found i just sit with the Reface and work out songs etc. And a piano seems to be the cleanest tone to use. The DX piano is ok i guess, does the job, but sounds a bit too artificial
Even worth the MODX i tend to chop and change piano sounds. Too much choice sometimes, so the CP will be ideal. Ill never use it live.