When working up cover material, do you (and your bands) try to copy the original tune down to every nuance, tone, tempo and key? Or do you more typically try to put your stamp on it? Different key, uptempo, blues it up, different tone, etc.... Combo of the two? Neither of my bands does much current top 40ish type of covers, so I don't know what the line of thought on that would be. I would think covers of older and more mature songs would lend themselves to a little more freelance restyling than doing newer stuff.