IMO flushing once a month around the new moon (best cleansing time) is most effective, gives the body it's much needed rest period and allows the stones and fluids to 'move forward' so they may be more successfully flushed.
I also believe you will never stop making stones if the diet is not corrected.
You clearly have alot of discipline and fortitude! Tho - sometimes too much is a bad thing, I worry about too much stress on your body. There are other organs that stress with flushing. With your kind of conviction (doing all those flushes is hard work) I bet you can easily make other shifts that could bring back the health you desire.