From what I understand decline isn't the best for the shoulder. This is an old thought on the movement. Not too sure if this still stands

I would do the weaker 1st. Then vary on the other 2.

decline flys are a staple in my chest workout.

Decline,incline or flat..makes no difference as muscles contract on an -all or none- basis, so if ur declin or incline the same amount of muscle is recruited to the lift.do it though to add variety to the workout but it will not develope the chest any better or differently from any other chest pressing movement.

Didn't use decline in my chest routine for a long time - How wrong I was. I dont feel like I can achieve the same without including decline work.

I believe Dorian said that Decline is what gave him the most gains and works the upper chest more than anything as well.

I always work decline in on chest day. I usually start benching flat, then most to incline and then decline. I repeats the same with dumbbells after barbell. Going to try out what sh4dovv said and do decline first and see how things go

Try decline as your first chest lift. You will be amazed at how it will affect the rest of your chest routine..Decline hits your chest the most out of the three.I didn't believe it either but watched a few of dorians videos. I had to go down 20% on my next lift incline im serious...try decline bench first

Mandatory to blast all three with press and flies.