The easiest way to find out is to simply put it on your tiller tree and measure it the same way you would a braced bow. ....It is more than accurate..... It cannot get any simpler.......
Just pull it down and look at the weight. You ignore how far the limbs are moving and just look at the length of the draw.
Steve,
help us out with a hypothetical example or maybe a sketch
for example, a bow you are tillering and hope to finish at 50# at 28". during tillering,
1. if I pull 1#, the nock in the tillering string measures 5" below the handle
2. if I pull 50#, the nock in the tillering string moves down 10" to a point 15" below the handle
when do you check it next? when do you stop tillering?