I have a 10.5 in the milers that fit well. However, my 10.5 in the Forevers are way too big. What size would work for me in the Lanangs and Eldorets. A 10? 10.5?, anyone know? Also, are those the Lanangs that Teg is wearing at nationals in the 5k? If so that would answer my question as to weather or not they are good for a 5k. Any help would be awesome, thanks.