Last summer I dinged up my prop pretty good so I took it into Pharo Marine to have it looked at and we decided to put a new prop on.  They did so and I had used my boat with no issues until the end of the season when I took the family out for a ride and there was 4 of us and the boat wouldn't get up on plane.  Did they put the wrong prop on?  I'm not the most knowledgeable about props but it seems like it is the same prop and pitch.  Any ideas?

I am thinking of calling them to have them check it but I usually fish alone in my boat or one other person and it was never an issue.