Ok, I follow you now. Integrity check would be an accurate description. I will go into a little more detailed description of how I use it just for guys who might be following.
I like to have the tiller pretty well evened out when I brace a bow for the first time, usually at about 23" draw. I use just a slightly low brace 5".
Bow is at first brace, I place it on the tree and with no exercise I pull it to 20". I carefully note the weight and the position on the yard stick. Now I excersize the bow a bit until I get it to twenty one inches. Now I go back to the 20"mark and recheck it. If it still reads the same or at least very very close. I keep increasing the draw length until I hit target weight at about 23'. Almost all final adjustments getting it to target weight at 28"are made in the inner limbs. I like as little limb bending as possible but sometimes I have to use the whole limb. Monitoring any drops in weight caused by further bending lets me know when I can tiller the existing bending limb or need to move in with my tiller to use more limb. Very small drops in weight like 1 oz are enough to tip you off when you need more limb.