I don't have to worry about it now. I took the time last night to create my own instrument definition. Pain in the keister, but it's done now. I ended up using the manual for the PX-400R to find out all the specific numbers for the extra banks. So, if anyone is interested in an INS for either the PX-400R or PX-555R, feel free to let me know. There might be some extra configurations that are needed too, but all the patches work.