Is there any reason NOT to make 10% or even stronger Lugol's? It would seem to make sense for those of us taking relatively high daily dosages. I'm currently at 32 drops (200mg) daily. It's not a BIG deal, but 16 drops would be easier. I'm planning on ramping up to at least 48drops, or 300mg.
The only disadvantage I can see is with dosages becoming less precise as concentration increases.