Yep,that is the approach you need.
Great note taking,and time is essential.
Smokin' will emphasize the "change only one thing at a time".
I guess you get enough "snow days" to be able to put in the time.
Just like working in a chemistry lab,it is essential to keep a standard, that you can always go back and compare to.
A good example is cooking comp chili.
You can start off with something that is 95% of where you want to be,and keep making changes to where you are 30% where you want to be.
Don't ask how I know.
I guess my thought would be that if you are in the seasoning making business,or hobby,than it can be a good thing.
I have been taught/had to learn that cooking and presenting the product correctly is 95% of the process.
As in comp chili cooking,it is often the stuff you leave out that brings the success.
This is one book out there, on building flavors, that may help in what you are doing.
Paul Kirk's Championship Barbecue Sauces: 175 Make-Your-Own Sauces, Marinades, Dry Rubs, Wet Rubs, Mops, and Salsas
Paul Kirk
In a handy, comprehensive volume, Paul Kirk lays out the secrets (well, almost all of them) that have made him the Baron of Barbecue. He imparts 175 of his own winning recipes and, in a series of master classes, reveals the basic building blocks of spice mixtures, marinades, bastes, and sauces so that backyard chefs can develop their own special brews. Paul Kirk, a.k.a. the Baron of Barbecue, has been champion of the American Royal Open (the world's largest barbecue contest), the American Royal International Invitational, the World Brisket Championship, and the Great Pork BarbeQlossal. All told, he has won more than 400 barbecue awards, including seven world championships.
Soft cover: $11.95 US$ + $5.00 US$ for shipping & handling
Just a couple of thoughts.