Hack for independent dynamics with piano?

Curious if anyone else is doing this. When I write for piano, since playback does not support independent dynamics for left hand and right hand, I create a second score that is a 2 piano score, and adjust the parts/dynamics accordingly. I create a sound file from this version, though I publish the version for 1 piano.

All of which is to say, it would be great if independent dynamics for piano was one day supported.