In tyros 3 and 4 description it says i can only assign DSP effect 8 and 9 to a style.. this means i can only use 2 unique DSP effects for style parts?

This sounds like a severe trade off, as a software user i am used to assign every track its own effects, they make a sound so much more alive.

Can anyone explain to me in depth what options the DSP effects bring to the style department.