Vquestor, if you did that you may not be able to use some wavetables, e.g., Bandstand until it gets updated. There are other wavetables and sample players that adher strickly to the GM Standard, e.g., rgcaudio sfz and others.
In addition, EMC conversion from other keyboards to Yamaha are in the GM format and require only the usual tweaking, e.g., volume, effects, etc.
Just thought I would point this out.
[This message has been edited by Frank L. Rosenthal (edited 07-26-2006).]