Descending Strength Cure Rows
Rows fall into the category of the Descending Strength Curve; the movement is easy at the beginning and hard at the end.
Thus, the end of the Row (almost all Compound Pulling Exercises) never is completely works.
In a strict Row, you pull a heavy weight only about one third of the way up and are unable to complete the full range of the movement.
“Cheating Kroc Row” provide a somewhat “Accommodation Resistance Training Method” allowing you to overload the movement through a greater range of the movement.
It is a very effective method.
Once muscle fatigue set in technique fall apart; the exercise at that point need to be stopped.
I am a proponent of keeping repetition low for the Deadlift, 1-2, never more than 3.
Conventional Deadlift “Stretch Reflex” Training
Bouncing the weight off the platform elicits a “Stretch Reflex” action for the Conventional Deadlift.
Secondly, since the sticking point of the Conventional Deadlift is in the knee are. Bouncing the weight enable to use more weight and overload you knee area sticking point as well as increase power in that part of the pull.
The Sumo Deadlift
Bouncing the weight off the floor elicit some of the "Stretch Reflex for the Sumo, too.
However, since the sticking point is in breaking the weight off the floor, increasing Limit Strength off the floor in the Sumo should be the emphasis.
With that said, one effective for developing the “Stretch Reflex” for Sumo Deadlifter would be Deficit Sumo Deadlifts.
Other “Stretch Reflex” Sumo Deadlift Methods
Grip and Rip: Performing singles with the Deadlift in which your drop down to the bar quickly, grab the bar and pull.
Bouncing Up and Down before you begin your pulls.