[HoosierBrew]

Mash efficiency + semi-accurate pre-boil volume is good enough for me.

Yep, agreed.

[klickitat jim]

Mash efficiency + semi-accurate pre-boil volume is good enough for me.

Well your beer must not taste very accurate.

I might have to write that on a score sheet sometime. Flavor: "Low to medium low effeciancy calculation accuracy on the finish. Try using a calculator, or for an historic taste use an abacus. "

[Wort-H.O.G.]

It's difficult to tell from that picture, but I think you could probably crush a good deal harder than that.  Crush till you're scared.  Crush until you get a stuck sparge on a batch, then dial it back slightly.  Crush as hard as you can without getting a stuck sparge.  That's always the very first step in improving efficiency.

precisely what i did..im at .028 mil gap now. 88% is norm now.