You can't edit the MFX section on a G70 and import.

Plus, the GW-8's soundset is TOTALLY different from the G70. Putting the right MSB, LSB, PC#'s in the style is probably going to have to be done in the Style Creator section, again, for each division separately, rather than the ease of the Makeup Tools...

And it still doesn't address the issue of how complicated, if even at ALL possible it is to get the ROM styles OUT of the GW-8 so you can edit them (my primary complaint).

BTW, when you heard how the G70 had the most ROM of any Roland arranger, it probably WAS it's TOTL back then. Things change, mind you. But websites don't necessarily change their copy to reflect this LOTS of websites still calling the T2 Yamaha's latest TOTL arranger...