New excercise and more pullups

I did a new excercise today (see vid below) and of course, more pull-ups. I can feel the pull-ups are getting easier- I can now do 11 w/out stopping to rest.

45 pound Dumbbell squat snatch, left arm, 21 reps (20lb d-bell)
45 pound Dumbbell squat snatch, right arm, 21 reps (20lb d-bell)
42 Pull-ups

45 pound Dumbbell squat snatch, left arm, 15 reps (20lb d-bell)
45 pound Dumbbell squat snatch, right arm, 15 reps (20lb d-bell)
30 Pull-ups

45 pound Dumbbell squat snatch, left arm, 9 reps (30lb d-bell)
45 pound Dumbbell squat snatch, right arm, 9 reps (30lb d-bell)
18 Pull-ups