Made steak for 4 last night and modified technique a little. It worked out great.
1) buy 2" thick ribeye not trimmed
2) heavily season with kosher salt
3) let sit out for 1.5 hours (a lot of water will be drawn out)
4) rinse steaks and totally dry
5) bring cast iron pan to medium
6) render fat from edges for about 4min per steak
7) cook each side for 2 min
take off and rest for 10 min
9) clean pan
10) bring to med-high
11) add liberal amount of butter
12) sear each side for 60 sec continually basting with butter
13) rest for 6 min
Had stuffed potatoes and roasted asparagus with them.