^What he said should be tried and read first, if you get everything set up right, it will remain right forever if you save your profile and backup all that training you did to your own speech engine.
But as a final resort, after trying the above, there's really nothing wrong with this:
prepare for system [jump;job]
It's what I did - trained everything, followed the steps in the manual and that post. In the end, once in awhile, some words will get mixed up due to enunciation, or maybe saying something with a little breath behind it that hits the mic just right.
Adding those accidental words as a last resort in the optional command format is a valid workaround.
I don't always drink beer - but when I do, I slurrrrr my speeech.