1 – Train your triceps with pushdowns or "flexing" type movements first.
Lifters often complain that lying triceps extension (skull crushers) shred their elbows. I agree, as it's happened to me, too. So always begin your triceps training with a pushdown – rope pushdowns are the best – and get blood into the area.
By getting your triceps and elbows warm and full of blood, you should be able to do lying extensions later in the routine, without the accompanying pain that's so prevalent.
2 – Continue with a dipping-type movement.
I like to go heavy on these, so for safety and injury prevention, it's probably a good idea to do these movements second in the routine.
3 – Finish with extension or stretching movements.
Up to this point, your exercises have all been about flexing hard and moving heavy weight. Now that your arms are wobbly, it's time to move in for the knockout. Here's where lying triceps extensions are ideal.
Apart from keeping the joints healthy, it's great to finish with a movement that "stretches" the target muscle out. There are many different extension variations you could have in your arsenal:
EZ-Bar Incline Triceps Extension
This is the best sequence for triceps growth and for keeping your elbows happy. Give it a shot.