[MN BB Ref]

Often times the placement of officials depends on your association. Although the NHFS website does recommend a R, U, and HL for a three man crew, that isn't always the way it will transpire.

For example, through trial and error the association I belong to has determined that it works better using a R, LJ, and HL. I tend to agree with them on that fact as it gives you much better control of the line of scrimmage prior to the snap. The downside of course is that you sacrifice some oversight on the line after the snap...especially when it comes to holding penalties. HOpefully the R is catching those.