Uh oh..... here we go again....
You trying to start something?
Measure your efficency before the boil. It has nothing to do with after the boil.
If it did I could put a drop in a 55 gallon of water and get 0.00000001 effeicancy or boil it down to a soild and get 99.9999%.
What you extract out of the grain, AKA Grain Effiency, has nothing to do with the boil.
Its all about converting the goody.