So, whats the consensus? i.e. does the GA2 run a tad “small”…I have a 22 1/4" circumference (I believe I currently wear a Medium Giro Monza) and was considering a Medium GA2 (21.75-23.25 inches)…no shops carry it around here hence an EBAY store or other E-seller. So, trying to figure out what size to buy…those that own this helmet do you have a comment?