when I do these, I do these on a small incline with the dumbbells landing at the mid point of my chest. would a higher incline on the bench be suggested? also higher as to where the db lands, like closer to the collarbone?
The incline is fine. I actually do them flat a lot and also I do them with a band around my back for extra tension.
You are bringing to mid chest? Thats whats causing the delt discomfort.
Try doing them really high like upper chest next to the clavicle yes. Doing them mid chest stresses the delts in a bad way. Do them high up on the chest start and finish and this will work your tri's and wontmess up the delts.