i’ve thought about this a lot.
never actually done anything about it, but i keep having new fixie projects in mind that i never get to.
at first, i was thinking that this would be a good situation for the one-side-is-spd, one-side-is-platform. but this really does seem like a situation where cornering ability is key, and the platform, i imagine, would really lessen the amount of clearance.
i rode 2-sided spd mtb pedals for years on my road bike. i found them easy to get into, easy to get out of. no look either way. they’re also adjustable, so you can have one foot that comes out very easily if you want to. (this is what i did btwn when i tore my acl and when i had surgery). w/the 2-sided, you also have the option of having one side tighter than the other, just make some sort of bright color coding to differentiate.
the question then is, do you want to carry an extra pair of shoes with you? or do you want to walk around in your bike shoes all day? i’d bike a few miles on spds w/normal shoes, but not more.
-charles