Just completed my standard Mick run- Bowman and Topps 1951-1969 (excluding all Topps' specialty ones- AS, MVP, etc.). I may venture out into the dog food trading card world eventually (so many examples available!), but for now mission (spanning 1994-2014) is complete.
1954 Bowman Mickey Mantle.jpg
I also personally concur to the previously mentioned scarcity of well centered Micks, as only 1 of 26 (including a couple dupes and a couple AS/MVP examples) is 50/50 centered- 1967 Topps. I think this probably applies to most other cards/players from these years too.
I'm personally not bugged by OC cards, especially when looks good to me otherwise, but it does seem pricing for centered examples is skyrocketing. Makes me wish I'd gotten lucky on at least one or two more of the prior 26, not as much for personal taste, but so I could sell it for big bucks and buy a clean OC example and then some
BTW- love the Bird!