Not a bad point tbf. I take mine off early rather than late as I like them rare or medium rare depending on cut.
However, if you get your steak from the butcher (and you really should) then they will almost certainly be different thicknesses to a supermarket steak. In fact when I get mine (and...
Yes, yes, there's literally no one on the internet recommending you do it that way. Far better to set a watch and pray.
https://www.google.co.uk/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=how%20to%20test%20for%20steak%20doneness
Raleigh Chopper isn't far off.
Hot pan but NOT smoking. Dry pan. Brush the steak on both sides with olive oil and season with salt an pepper. I only turn once.
The crucial thing though is NOT to time it. Steaks are cut to different thicknesses unless you get yours from a place that has a...