I habitually unclip with my left foot at whatever position is handy at the time. Left foot, as unclipping usually coincides with having to stop at lights etc., thus being ready to put said foot on kerb, ready for the off.
Just a bit concerned that my left SPD will wear out faster that the one o t'other side - !
Just a bit concerned that my left SPD will wear out faster that the one o t'other side - !