Pros/Cons of external (builtin) overflow

[Delphinus]

Doug doesn't sound so keen on them... How hard did Jim have to lobby for them?

I might have to get them installed afterwards seeing as they could seriously complicate getting the tank downstairs and around a bend.

The coast to coast overflow sounds neat too, I had thought about that but forgot to mention it to IA as a possibility as well. Thanks for reminding me Willow, I'll check into that as well.