JPS, I had the same thing going on as you and went to a store to try them on. I bought them at the Clarks store about a month ago and they are so comfortable. I sized down 1/2 a size from 10.5 to a 10. They fit like a glove and feel perfect. I had tried the 10.5 on before that and they felt horrible, so sizing does make a huge difference with this shoe.
My advice: Order them from www.Zappos.com
, you'll get free overnight shipping (both ways in case you need to return them) and it's not such a boo boo if you don't like the sizing. Size down 1/2 a size and you should be golden.