can't think why tax.were both steaks the same cut & thickness?i always use a cast iron griddle pan & get it literally"smokin' hot" & keep it that way thoughout the cooking period(see pics!!!).do you get your pan as hot?the ribeye that i cooked tonight was over an inch thick.took 5 mins total cooking time then 5 mins resting on a warm plate.still nice & hot after the resting period.woulda thought an additional 5 mins would have got a second steak well & truly "well done" enough for stirling!!
if not,maybe you need to change your fella not your cooking techniques,mate
!!