Super. Usually the ideal process is 1) check out recognition with your vocabulary (trying to avoid high-confusion word sets that rhyme or are otherwise very similar – ideally they aren’t all one-syllable words), 2) raise the vadThreshold as high as possible to the point that when you speak a vocabulary word under normal environmental conditions, it is recognized, but as little incidental noise and non-speech as possible is heard, and then 3) add Rejecto if needed, starting with a low weight and increasing weight until you have the best out-of-vocabulary word rejection while still having the words in your vocabulary detectable when they are spoken.