Jim,
Congratulations on your new R9s and welcome to the forum.
I've fired a box of Speer LE, law enforcement, Gold Dot 115 gr. They performed flawlessly. I don't know how close they are to the "Lawman".
I've also had no problems with good, old WWB from Walmart. I'd say if you've got some of the S&B or Lawman rounds on hand to give them a try. And, let us all know how they performed for you. My guess is that you won't have any problems.
Regards, Quiet1