My families have been able to pretty successfully split the 2mg tabs for what it's worth (as well as the 5's and 15's). I always tell them it's not a huge deal if one side is a bit more than the other. The big thing to keep in mind with splitting Abilify is that the pills degrade overtime when exposed to air. Thus the schedule needs to be using the other 1/2 of the split pill the next day (i.e. do not presplit the whole bottle for convenience latter), I always mention this to patients/families.