Speed work

[Skeletor]

On the subject of speed reps how is one supposed to perform the following excercises.

 

1 .  Speed bench... Are you supposed to pause on the chest and power it up from a dead stop?

      Because i see guys on the net both touch n go for 3 reps flat out AND pausing each rep. 

      Wouldnt pausing each rep be the correct way?

 

2.   Speed squat ... Should you be doing a pause squat and exploding up or using the bounce generated from the dropping down? 

 

3 .  Surely from a dead stop each rep? 

 

Just curious because i always thought speed work was based on exploding from a dead stop using a lighter weight . Probably a stupid question but rather ask and get it right than waste my time doing it wrong.