I didn't want to hijack Oscar's thread on Bench form, but I have a question relating to some problems I 'think' I might be having. (Not entirely sure if I'm overthinking it...)
I can usually get into bench position not too terribly, arched back, chest out, feet flat. But when I unrack the bar, the weight pushes my arch down. From this point I stick out my chest and try to restablish the arch by protruding, what feels like, my scapulae in the bench. Now, I don't have very good trap development, I'm naturally pretty lean and realized recently that I need to try and develop these muscles, as theyre obviously lacking and for better success with DL's.
Returning to my question, is what I am doing just a different term for 'digging in my [presumably, lower] traps' or do I need to seriously work on trap development to get in the universally accepted proper bench position?