Is it O.K. to switch between minimalist shoes and my regular running shoes if my calves have begun to hurt a bit? I've been running in minimalist shoes for about a month now and whenever I increase distance my calves begin to hurt. I usually counter this by either running through the pain (because it's more of a muscular ache and not a sharp pain), or taking a day off. I was wondering if there would be any adverse effects if I switched back and forth between minimalist and basic shoes.