Yes, I want to go down to 1/2 cup of Olive-Oil and 1/2 cup of lemon juice.
Prior I did 3/4 cups of each.
If I can drink less of this and still get excellent results, well, I'd be happy!
No, in answer to your question, there is no reason to up your potion amounts if your recipe is working.
I read from Shelley that she does "mini-flushes" with small amounts of potion (sorry, can't remember which proportion and amount -- but that's OK, since we all need to find what works for us individually. I imagine the 3/4 OR 1/2 cups of each is a good starting point, and then we can adjust as we feel the need.)