I agree the Mega voices can cause a problem because of additional attributes added too them; however with the quality of sounds in VSTs, Mega voice technology is not required. (Hence you will not find any professional studio using Mega voices, but they do make extensive use of VSTs)

Mega voices while good are actually a cop out for the style designers, as they do need to put so much effort into creating a style as the Mega voice does a lot for them. (All the features of a Mega voice can be programmed into most style engines without needing any special voices)

NOTE: don’t confuse articulated voices (Or SA as Yamaha likes to call them) with Mega voices, as they are 2 different things. (More sophisticated articulation voices then those featured in the Yamaha, were used in VSTs long before Yamaha started using them, but Yamaha automated the process to make them easier to play for the less experienced. (Of which a lot of home players are)

Bill