changing the log scale on my template to meters instead of feet?

I am creating an Observation well installation form that converts the input from feet to meters, by copying and revising an existing English units form.  Though I've used the <<User System Data. Log Scale Factor>> in Scale Factor Expression field, the metric scale doesn't extend to the length of the column, and the related depths are not lining up with the scale.  Can anyone give me guidance?

Thank you...