Went 100% back to platforms, then returned to clipless on two fast bikes, one Tri. My commuters are platforms, powergrips on one and fixie straps on the other. Tennis shoes are great, at less the ones without the built up sole and heel. Mine have a pretty stiff sole. But I switch shoes I'm riding to work, which was part of the reason to ditch clipless.

Though I anticipated muscle memory problems riding bikes with straps, then going clipless, then back again - never happened.