The link seems not to work.
Regardless, sounds like you've got your mind made up so go for it.
I've not had the instep discomfort, but I would think that's more a function of the shoe shape than the lacing method.
I don't use bike shoes to visit the mall or walk the dog, and walking into a 7-11, it's never been an issue with the "clomping around" or the "toes up duck walk", it's just not that big a deal.
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"be careful this rando stuff is addictive and dan's the 'pusher'."