Nice tips, not too sure about salting for 4 days
I followed Heston's latest advice about leaving the steak uncovered in the fridge for two days, seasoning just before cooking and flipping it every 15-20 seconds. Inproved supermarket steak no-end.
However having said this I will study these new ideas in depth and maybe give it a go in the next couple of weeks. If I do I'll let you know how I fared.