Flat Earth vs Globe - Does weight change with Latitude? Is this evidence the Earth is spinning?

I am very interested to hear comments from the Flat Earth community on this one. . Please don’t waste time here saying I rigged the experiment - if you believe that then buy a set of scales and try it yourself. I know these results are 100% correct and the testing was done truthfully so I am curious how it can be explained if the Earth was flat. Please focus on that line of response. The scales I am using are these. The