Hi Jupiter,

you asked before about Pa1X sampling possibility: yes you can sample by yourself, import Akai-wav-aiff-Triton formats, and time-slice audio grooves for further use into styles.

I can tell you that I'm really satisfied with my actual set. Of course you cannot expect the perfect sound in every field (and this is valid for every model of every brand), and since everybody of us has his/her own tastes the best possible solution is having a sampler inside so you can integrate the standard set with the sounds you would like to add or enhance.
There is some work to do, that's clear, and the final result sometimes is also up to your programming ability, but definitely the most flexible solution.

Hope this help.

Cheers.