Well I've never used the accubonds. It would stand to reason that they would be excellent rounds. I don't like the sound of shedding weight. Retained weight has always been a criteria or mine in selecting a bullet. I think the partition normally functions at approx. 85% retained mass. So I guess it sheds some weight as well. The accubond certainly appears to be a winner on paper, I'm reluctant to change more from the "if it ain't broke don't fix it" standpoint more than anything else. Partitions have always served me faithfully.