Upper Body

I. Weighted Dips
--A.9 x 30lbs.
--B.8 x 35lbs.
--C.9 x 38lbs.
--D.8 x 43lbs.
*superset* 1min rest between exercises
II. Pull-ups(pronated)
--A.8 x BW
--B.7 x BW
--C.8 x BW
--D.7 x BW

III. Dumbbell Military Press(weight for each hand)
--A.9 x 30lbs.
--B.7 x 36lbs.
--C.7 x 36lbs.

IV. Shrugs
--A.10 x 225lbs.
--B.9 x 240lbs.
--C.8 x 255lbs.

Reflection: Good workout. Had to split it into two sessions (military and shrugs later that night) because I was running late again . Going to stop doing that...

-Is it because I'm not warming up sufficiently that I sometimes get more reps on later sets? I don't think it's my intensity because I burn out every set...
-Can someone give me suggestions for stretching: How often to do it and what exercises, etc. Look at most recent leg day to see.
It's not because I can, but because you couldn't if you tried.