I was weighed in my local AFCO....the result shocked me as it was way heavier than my digital scales at home. My scales say 94.4kg, AFCO scales say 101kg putting me at a BMI of just over 30. ...anyway i was told BMI not in range come back when you 95kg. I was advised to use the Boots BMI machine to keep a check. I went to Boots, weight 94.4kg...BMI 28.2... 183cm ....even done it twice just to be sure. They were the needle type scales, is it possible they were wrong?