I don't have an answer for you right now, but I will do some homework and report back. I use a Triton Pro, but do not have any PCM ROM installed. From reading the manuals and the Korg website, I would suspect that if they replace Banks C and D, you'll have to write the libraries for them. They should still comply to CC#0=63 and CC#32=2 and 3 respectively. Hopefully the names are close and you can use the library posted on my site, just change the names.