I'm quite familiar with PHA-4 Standard and its MIDI behavior in my Roland FP-10, in use daily as my piano MIDI controller. Absolutely happy with it, particularly at this price point.
Yet, I am quite curious if Kawai's RHIII, as found in e.g. the MP7SE, CN29, and CN39, would give me an improvement in touch, nuance, control and provide at least as good a MIDI output as my FP-10 does (which is rather well done if not to say excellent).
I was about to visit a store or two to physically try the Kawai RHIIIs out, however, newly instated semi-lockdown measures in my country have made that difficult for some unknown time to come.
So I'd be very interested to learn more on how these two actions compare in the hands of people with experience with them for actual piano playing.
My 'use case' is my study/home piano, with a broad musical curiosity and interest which currently goes toward classical, minimal/atmospheric, and jazz. Thus far I solely play virtual (VI Labs Modern U), but in case of an engine such as in the MP7SE I could see myself using internal sounds as well, to get some variation and to have fun with.
Cheers and happy days,