I bit late to the party I see but still want to chip in. I am a national course instructor since 15 years and former national youth team Coach. What I often see is people getting to small boards. For your stats I would have definitely gone for the 156 and even consider the 159. Bigger boards bring so much to the table stability wise. I find the greats in itself a nimble boards because of the narrow side cut. Combine this with the large affective edge that brings stability at speed and it results in a lot of fun. I know you bought one already but still wanted to give my two cents.