Vocal Science for Singers
Finished Sounds For The Male Voice
Finished sounds don't utilize any exaggerations, but are your true "finished" singing voice.
Here's where you really work on getting balance. Again, this is only a small sampling of exercises I might use with a student use, the point is for you to understand what is going on and what the exercises are accomplishing.
This way you can better practice whatever course or lessons you are currently taking.
Note: If these are too difficult, stay with the previous exercises for a while. Often, a voice teacher won't get to finished sounds for at least a few lessons.