It's official, my WW meeting scale is F-ed up

I guess the bottom line is that EVERY scale is different!  If you stick with one scale you will find consistency, but you cannot expect every scale you step on to be consistent with the others.  There are so many factors that affect the whole thing...but every scale is in a different place so it's like comparing apples and oranges.  I weigh different amounts on every scale too,  but each time I weigh myself on those different scales I just calculate from the LAST time I weighed on that scale.