No problem, to each his own. I must admit I too have a drawer full of mics, calipers, custom tools and measureing devices and have used them for years. But I have found when loading for a full blown custom rifle
, like Chris Matthews builds, and setting the FL die to the chamber, I don't need to rely on measurement. Besides, when you get down to .001-.0001 most common loading tool measurements will be inconsistant anyway unless you true your cases and all dimensions are the same.
I guess feel is a subjective thing. The more you do it, the better you develope it. I would also recommend you not set your shoulder back every reloading. If you have a custom chamber and a custom die then I would think setting back would defeat the cost of having such a quality piece. But then again, tinkering is half the fun of shooting, isn't it.
Haved a blessed holiday.