I am going to try and word this differently. I say that tip movement, string movement, and the weight you are actually pulling on the bow have no correlation to draw weight. The best indicator or current draw weight is simply to pull the string down to the draw length you are looking for or until the scale hits the draw wight and you check and see how many inches of draw you are at regardless of string length braced or unbraced. I am not saying it is 100% accurate but I am saying it is the best indicator.
The little flight bow I just did, I hit 50#@20 on the long string, I braced the bow and it was still 50#@20". The 100#@26 bow I did last week, was showing 100#24 on the lng string, I braced the bow and still showing 100#@24.