Use on same flat flooring in exact spot (hardwood underneath). BUT the further forward you move on scales, the lighter the reading. by as much as 18lb .
(they are these ones less than two years old.
So am going to buy some new ones and thought sod this digital thing, i'll buy mechanical ones. But web search says mechanical less reliable. so i guess it's just my ones that are rubbish.
got to replace. what should i get? i have£20