So curiosity got the best of me and I decided to run a test yesterday. I did some reading online and saw a lot of breweries use 1.5mm - 1.7mm crush (.059"-.066"). I set my mill gap at .058" with a feeler gauge and conditioned the malt. I tell you, I heard angels singing "Hallelujah" every time I went to check on the mash. I could actually run the pump wide open it was draining so well.
I had high hopes that my efficiency was going to increase...but alas, those hopes were dashed. 56% was the final result. I'm going to pick up 20# of grain today and run 2 or 3 more tests, each with a finer grain crush. I'm determined to find the grain crush that will give the best efficiency and still drain well.
And for those who don't condition your malt - I'd suggest you try it once and see for yourself.
@thedon986 - I'll condition every time from now on!!