Leveling out a 2005 hoe

I want to level out the front end of my 2005 Tahoe 4wd.  I know that i can adjust the torsion bars and then get the vehicle realligned but is there a better way to do this?  i have seen the torsion keys but do not know anyone that has used them.  Any ideas? 
 
Thanks Stefan

I just had my 02 leveled out on Saturday.It looks real good and doesnt ride any differently.I bought the truxx torsion keys from Fat Bobs Garage.