i feel sorry for they guy asking about the OG Classics and everyone thinking he means Classics.. it's not the same.
i read you have had tablets, so maybe seeing them side by side can help you make up your mind.
left are 55mm OG Classics / right are 54mm Tablets
they are just as square on the edges, only the OG classics are slightly wider covering the nut a little more. might save you some wear on the nut from missed slappys. your hanger might feel a tiny bit shorter too.
other than that i can't imagine or feel any distinct diffrence. they roll up and lock in the same for me.