Body Glide sounds like a fresh idea...One bike has SPD pedals..those definitely give one hot spots the fastest...
My road bikes are Look...Better...but, what I have a difficult time explaining...Over the years , I have collected three sets of Look style shoes...PI, Diodara, and Time...PI causes lots of pain..next most comfortable...Time . and most comfortable are Diadora. all carbon soles..inserts look about the same...
I think the earlier suggestion...start off with the shoes a little loose...Diadora is the roomest for me.