The Year Count of Imrei Binah

The count given in Imrei Binah assumes the count of Rebbi Yehudah, starting in the year 3416, which is the same start-year as the Rambam.  That being said, it is not 5769 that is the Yovel, but this year, 5768, which is the Yovel.  Of course this conflicts with our halachah l'maaseh, and I don't see any rationale for adding a year to this count to make 5769 the Yovel, since the sefer is fairly explicit that it starts to count from Molad BaHaRa"D.  As such, the prior Yovel would be in the year 5719 (1959).