Remember that the Penguins were outplayed by both Columbus and Washington, yet they prevailed, including winning game 7 on the road.
You are correct, the pressure is on the Penguins until the first goal. If they score first the pressure shifts; if Ottawa goes ahead the pressure will be stifling. I know Crosby and Malkin can handle it, but what about the rest? If you ask Pierre he'll tell you Murray can take it, but he also told us all White would be NHL ready in September. Phil doesn't handle pressure very well at all.
Hit Phil. Shoot high at Murray's head. Crowd his crease. Draw Malkin into taking a penalty. Box out Crosby and hit him if the chance presents itself, but stay away from slashing and cross checking.