Just got the Titan boots from baffin...size 13. I usually wear a 12. Thee seem a little big, but with such big liner I thought that would be the way to go. Feel a little big, but ok. I think the 12 would be too tight. Should I send them back and get the 12 or stick with the 13 and have a little wiggle room. They only seem big at the end of the toe, but foot feels surrounded. Help.