I measured my weight with a horsey weight tape today...

Really? Have you weighed her on a weighbridge?
We used to use weightapes for worming etc until we got a weighbridge installed on our yard...most were 50-100Kg out!
I find weightapes misleading, great for seeing how many inches they've lost/put on but unreliable for an accurate weight :)

Edited to say i've just read that you measured yourself....rolf!!!
 
I once took my horse to a weighbridge and then measured him with a tape and it was only 2kg out!
I've since measured different horses after they have been weighed and they have been out by 20 - 40 kg.
 
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