I recently read a paragraph that used the convention 100 ft (30 m) in one sentence and 300 m (1,000 ft) in the second, then back to the 10,000 ft (3,000 m) method in the third.
This gets very confusing when you read it.
If you’re in the USA, put the English units first and the metric units afterward in parentheses.
How shall we remember this?
We all want to “put our best foot forward,” right?
And if we don’t, we might end up leaving the building feet first!