Works for me every time! Although I use the 15 flush technique just to be on the safe side!!
I don't think it's as simple as that. Different cistern sizes and flow rates affect the flush amount.
Also, If you let the tape become loose and you don't remember to clean your bowl properly, the bud ends up tasting like shit.
It takes a long cure to get that flavour out.
I had an idea about packing ounces between two of my girls santary towels and feeding her a diet of Jack Daniels and fudge brownies. I have found that the brownies help cover the taste and appearance if the towels 'slip backward'. The blood adds extra flavour if your are a Carnivore. Also it can easily be separated off to make a nice stock for a stew. It doesn't go with lamb unless you add mint sauce and a tiny bit of Balsamic vinegar. The amount of vinegar is genarally related to the number of previous partners. I tend to go with one teaspoon per five partners. For full authenticity, I also add one spoon of fish sauce per spoon (or tuna in the case of virgins).
However, now she is starting to complain about not being allowed to eat normal food and is completely hammered 24/7 and is being even more of a pain in the arse than usually. And she has drank all my Jack Daniels.
As far as I can tell so far, my main mistake with this experiment was forgetting to incude a gag of some description. I was thinking about a sound-proofed room but as always, it's about budget.