Laaksonen told Marty Biron during training camp that he was up to 185.
He's likely going to need another 20 lbs of muscle and even then, he'll be Tallinder slim.
Now about his unforced errors... that is going to be his limiting factor in making the NHL as anything but a PP specialist type. And right now, they have two PP1 guys in front of him and have a mishmash of possible PP2 guys who get displaced by who of Power or Dahlin isn't on PP1. And Laaksonen is not differentiating himself from those folks. Bryson is the better ES defender. Miller has NHL performance. Heck, Jokiharju can man a PP point and has shown he has some NHL defending chops and puck security.
Just being RHD isn't going to get him to the NHL promised land at this point. He needs to get considerably better at things other than the PP.