Questions on a routine

[Heracles]

http://www.powerpage.net/coanphildead.html

1) Have you tried this, and if so, how much did it boost your deadlift?
2) If I am just doing it to increase my deadlift and not for a competition, how important are the speed sets?
3) The assistance sets... do you do them to failure?

 

[w8lifterchick]

http://www.powerpage.net/coanphildead.html

1) Have you tried this, and if so, how much did it boost your deadlift?
2) If I am just doing it to increase my deadlift and not for a competition, how important are the speed sets?
3) The assistance sets... do you do them to failure?

i have done the routine-(i designed the logo for them btw)
the speed sets are important, whether for competitive reasons or not.
i dont have the routine in front of me but do the prescribed amount of reps for the assistance- choose a weight that is close to failure