Im new to the boards and never done a trick in my life (except the occasional accidental air), but I think I can answer you question, because its very simple.
Go to a reputable boot shop and find out. You wont know until you try them on. Besides which, why SPK in particular? Im assuming those are high end, expensive boots? Why not take that money talk to a professional let him help you find a boot that fits and is comfortable (maybe it'll end up being cheaper?).
like i said above, not sure why the SPK in particular except maybe you like the way it looks? Im also assuming park boots are similar to race boots in that once you decide to spend the money on the high end boots the major differences are primarily what type of feet they fit (sure they each have their gizmos and gadgets to try sell more, but ultimately it comes down to sizing).
I'll guarantee you that you will be 1000 times happier buying a boot purely based on fit and comfort than on looks. not only that, but you'll look way cooler being able to ski all day and night non-stop while your other friends are on the sidelines with messed up feet and sore shins!