Not tested in 1.8.

When Biome Size is set to 6, for example, I get these massive Beach biomes floating in the middle of the ocean; http://imgur.com/a/oR1pO

Beaches around normal terrain are also massive; http://imgur.com/a/EJnyV

I'm not sure if this is how it's supposed to work, but I do know Vanilla does it in a much less intrusive way. Certainly massive beaches like this are not pretty. If you won't change the default behaviour, can you add a config option for it?