Hi guys. I'm thinking of buying the SPKs but frankly I don't want to spend 350 $ so I think of ordering the 2012 model. My idea is to try the 2013 in order to decide which size do I need, and then order them online 'cuz it's a lot cheaper. But my local boot fitter doesn't have the 2012 model, so my question is are the sizes the same? If I was going to buy for example 27 of the 2013, does that mean that it should be the same for the 2012?