Vision Draw Weight Question

I have a 31" draw length. I'm curious if I purchased a 50#@28" Vision, approximately what poundage would I be pulling at 31"?

You can expect a Vision, with a 50#@28" weight, to gain about 2.5 pounds per inch for the first couple of inches. From 30 to 31", I would expect another 3 pounds. So, this 50# would become about 58 pounds (maybe 59#) at your 31" draw.