Experimental Knowledge vs Experience
The only reason one would fare poorer with more oil is if they're not comfortable taking that much oil, and thus they tense up, stress out, and focus on the digestive issues that might come up. Simply put, your body
will release more bile in response to more fat being consumed.
My results for a first flush with 2 cups mixed oils + 1 cup of oil the next day (went down easily and quickly) were much better than my results with 1 cup mixed oils (I was uncomfortable, they went down slowly and the taste wasn't working for me that night). My next flush after that also used 1 cup of oil, and was one of the more comfortable flushes I've gone through - while I didn't get quite the magnitude of stones as I did in the first flush, I got some very large ones.
My conclusions, based on some knowledge of the liver/lymph + digestive systems? If you can drink more fat comfortably, it will likely improve results. And if you're having issues flushing, rarely will
decreasing the amount of fat you take in (1/2 cup decreased to 1/4 cup) help you out.