My recommendation is to put about what the soil test says, then just add exactly "some" every year, or every other year, retest in 5 years or so, and adjust your amounts to your new soil test and repeat. People need to remember you are talking about food plots, for deer, the same deer that will spend 20+ hours of their day eating from the woods, where no lime was put down. You arent depending on this for your income, and need maximum yields, or you will loose the farm. Keeping it fun, and within your financial ability should be your number one goal.
Years ago, my wife asked me how much money did I spend on food plots this year. I told her I do not keep track, because it doesnt matter. I enjoy doing it, and I am not spending my money on alcohol, drugs, and I dont spend more then I can afford. Same goes for the work involved. Others see me out there and see me sweating, working my butt off, they come out and help me, and complain that it is too hard, and wonder why I do it? Because it is what I enjoy doing! Moral of the story, keep it fun, dont sweat the small stuff, dont spend more then you can afford, and if it stops being fun, slow down, stop doing it, take a year off, the deer will be fine with out your help!