I'm not seeing why being made by the same company in the same factory means anything, but my personal experience is that Blazer is a poorer performer compared to Lawman and I try to avoid it. Lawman for me seems to be loaded hotter, and 25 yard accuracy seems better. I would never consider substituting Blazer for a defense load.
While I have your attention, consider posting your church SWAT team's qual, perhaps it could be used for drill of the week.