My testing is done.. Attributes Effects set on 10/10 is a game changer for me and has really refreshed the game playing my Blues franchise.
Unlike last year without messing with this slider, Schwartz is my leading goal scorer and not Brodziak, Pietrangelo is a beast on D, my young guys make rookie mistakes and must be in a good position to score goals, Bortuzzo takes a fair share of penalties, etc..
I fear snipers and guys with a heavy shot, have trouble when speed is on the ice, have to work hard against good goalies to screen or tip in goals. I'm also conscious when Tarasenko is on the ice and work to get him the puck as he's much more dangerous like he should be.
Maybe the new ratings help with this setting as well but I'm thoroughly enjoying the game right now.