Monday JM 30 Day Shred Level 2 + extras (35 minutes)

I'm still using 10 lb free weights with JM and a 20 lb weight for the extras. I wonder if I should up the weights for the "easier" exercises (back of the shoulder, top of the shoulder, triceps, and chest) since I'm doing 3 reps of 10 with them as opposed to 3 reps of 5 with the biceps and back of the bicep? I might try to make a 30 lb weight with the weight set I have to add some more strength to my strength workout extras.