hey guys im 5'10 170 and my mom got me a 39 byerly. to be honest she didnt know what she was getting me and got this for a discount price because of some grip tape damage. i was wondering, even though its a 39. it still is a really thick skate what effects would this have? compaired to going to a 42
the 39 is going to be easier to throw around. the 42 would give you more surface area for a wider stance and also more room for error when catching the board. you should be fine with the 39. its not a true 39" board its really bigger. its weird.
the skate is thick because it has exagerated concave. it gives you increased leverage for edging and for ollies. some people find it extremely awkward will others dig it.