Need advice on OO, drinking it soon.

I am doing my 1st flush today, it's 7:40, and I started to think if I should drink more than 1/2 a cup of olive oil. The reason is, I just realized 1/2 is not that much oil for me, I easily have that much with my veggies every day (I make my dressing out of the exact 2 ingredients - olive oil and lemon, and I eat probably as much as what the recipe calls for in a flush). I never have any problems digesting a lot of oil. So since I am used to the high fat, whouldn't I need more oil to get my GB to squeeze hard? My rationale is that my every day diet could be a mini flush but it doesn't affect me. Please, let me know your suggestion (I only have 2 hrs though).
Also, just to make sure, is the epsom dose really 4 tablespoons, not 4 teaspoons?
Thanks.