Trying to go heavy on an assistance exercise is useless, if not outright dangerous, like trying to ramp up to 3 rep max on a stiff - legged deadlift or doing 100 lbs cable triceps pushdowns. (fitnessandpower.com)
a. Dumbbell external rotation 10 reps — 4 sets, tempo 3; 0; 2; rest 30 seconds b. Incline dumbbell preacher curl 10 — 12reps — 4 sets, tempo 3; 0; 1 c. Tricep rope pushdowns 15 reps — 4 sets, tempo 2; 0; 2; rest 45 seconds d. Scott curl reverse biceps curls 8 — 10 reps — 4 sets, tempo 2; 0; 2 e. Overhead dumbbell triceps extension 12 — 15 reps — 4 sets, tempo 2; 2; 1; rest 45 seconds (womenshealthandfitness.com.au)
I do pushdowns first, then lying French presses and finish with standing French presses. (ironmanmagazine.com)