I'm having difficulty finding a shoe that won't make my toes go numb. Even after adjusting the velcro and ratchet mid-ride, my toes stay numb. I've had a pair of Sidi Dominators and most recently the high end Shimano Carbon sole mountain shoes....both fit perfectly and with no problems after 20+ minutes in the store but after riding in them my toes go numb. Since no store will let me mount a set of cleats and pedal around on a pair of shoes I might not buy, how do I know if the shoe I'm buying won't numb up my toes? I'll pay anything for a mountain shoe that won't make my toes numb so cost isn't an issue.