Maximum & optimal amount of time between deadlift repetitions in working set?

[Starting Strength]

The article linked below indicates that 30 seconds between deadlift repetitions in a 5 repetition working set is not a set of 5, but instead 5 singles. What is the optimal amount of time in between repetitions for strength performance? Or should I be counting my breaths and doing my next repetition after my second breath or something?

Time Between Reps | Andrew Lewis

Thanks in advance!

[Mark Rippetoe]

Was this not specifically addressed in the article?

[AndrewLewis]

The Deadlift
Take the necessary time, but don't dawdle. The start of the deadlift is an unloaded position in which you are bent over with a small amount of knee flexion. As a result, you can get tired in this position. Taking 3 or 4 breaths at the bottom position before starting the next rep can be enticing when the weight gets heavy, but it will only make things worse. A good guideline is to breathe out at the bottom of the rep, then take one big breath, set your back, push the floor away, lock it out, set it down, and breathe. You won't pass out from only taking one breath each rep.