A bit vague
Oral without deepthroat isn't really the best. And at 160 an hour you'd expect to get deepthroat
Of course you can get great oral without DT.
Attention to balls, crack, plenty of polishing the head, varied pace, varied depth etc....
Kandice knows how to work it and work it well as do the other girls whom have been mentioned which I have seen!
You are asking for chapter and verse but have contributed very little!