I will probably buy a normal pedal with a zero aero cleat, since that's 50 € cheaper than the zero aero pedals and I guess the aero properties are most influenced by the cleats. With dual side entrance advantage.
The stainless steel have stock 53 mm spindles, which should be 4 mm narrower on every side than my spd sl. When I chafe my knuckels I'm only half f***** because you can buy 56 or 59 spindles.

Edit: crazy that the thread between pedals and cranks are still universal.