Thanks for posting. I do something similar with beers I make.... but I got some new, good ideas from what you have posted here. This is really a great, great way to hone in on key elements in your brewing process and make better beer, more consistently. Better notes, more detail is the only way to really bring some of this to light.
* one thing I have noticed is sort of simple and obvious, but until it stares you in the face, it is sometimes not evident. When I really have a beer planned out...... I have my recipe finished and printed off, I have my numbers in B'run Water, I have my salts added to my water, I have my grain crushed and ready to go - ALL THE NIGHT BEFORE. So, on Brewday, everything is set up and ready to go, and I only brew one batch instead of two........ I brew better beer. Organization makes a difference for me.
*One other thing I keep track of - just by hand on a sheet of graph paper is beers I brew, competitions I enter them in, age of beer at judging, and results.
Across the top of the graph I list the beers I brew - 1 beer in every column. Down the left, starting at the top, I list the dates by week (So This week would be Jan. 27-Feb. 2 (mon.-Sun.). So, If I brewed a beer on Monday the 27th (which I did) I put a 0 under that beer, across from the 27-2 date column. Then I fill the rest of the way down 1,2,3,4,5,6,7,8,9,10,11,12.......... How many weeks old the beer is. I have comps in with the dates and circle the beers I entered and highlight the ones that placed. This helps me look back and see which beers are placing at how many weeks old and if there is a "sweet spot" where they seem to do better (or worse). It is just kind of a way of seeing all the beers, all the ages, all the comps and how they fared. Be a good way to sort of look back and identify batches that did well vs. others that did not and see if there are any correlations.