I am running 900-1500 lbs indicated on a stiff Marstrom mast. I use "indicated" because I have tiny rod diamond "wires" and I have never been sure of the accurancy of the gauge.

In practice I simply adjust the bolt left or right, in half turns, depending on the wind. This is written on the mast with an old grease pencil. Periodically, I set the mast to known prebend and call that zero. When I set the prebend, I mostly, measure the tension with the gauge and write that on the gauge.