In reply to WillCass:
According to Sportiva Miura VS fit wide, so the closest comparison for a wider foot in terms of downturn and asymmetry is the instinct vs - and they size up at about 0.5 euro smaller (+- stretch).
They have slightly thinner rubber, but its xs edge. More rubber on the toe though.
If you want to go more aggressive from a Miura vs, geniuses are also wide foot suitable, good for smearing, pockets and a great heel but likely to give you permenant crippling f*cked toes if you were to try a slate test piece.
If only they still sold instinct laces! A Miura lace for wide feet!