Hey visitor, the only problem with that, is that you have to video the way that you point the mics, right? I usually like direct-mic ing my piano, which requires that you point the mics at the strings to get direct sound. That would also require, then, that you just video the strings. Or, you could video yourself, but then you would lose sound quality when you put the mic further from the strings.
Do you have a recording you could post so we could compare them? I'm interested!
hmm, perhaps but probably only willing to share privately. I had a big transition so i have not recorded seriously in about two years but am now working hard core on lots of stuff to start recording in 2016. I may be able to pull an example and send privately via pm to you so long as it's not shared. check pms if i can pull it/something.