The Rema, commenting on the mourning of the first 33 days of the omer, allows haircuts on Friday, lichvod shabbos, when the 33rd falls on Sunday.
Does the same reasoning apply when the 47th falls on Sunday (for those who keep Iyar- aka "the 2nd half")? Or is there something specific pertaining to Lag Ba'omer? The Rema does not repeat the permit after introducing the Iyar minhag, but he could be expecting someone to make the comparison.