Quote Originally Posted by Narkissos
When i do deads for back...i do em from the floor.

When i do em for hamstrings..i do 'em in the smith machine.

The strict movement allows me to contract and stretch my hams more forcefully...

I think each (deads from the floor..and deads in the smith) have their own purpose within the structure of a comprehensive workout regime.
Just out of curiosity, why not just do barbell Stiff leg deads for hams?