they are totally different fitting boots that are designed for the same purpose, not person. you need to try some on. this may sound weird but i honestly am wearing my hot doggers right now haha... they just got shipped up and im breaking them in. but anyway, i know people who loved spks and hated hot doggers... at the price of boots (and the cost of performance) its not worth just getting one cause theyre cool and for park. a lot of pros dont even ski in "park" boots