the 177's are 82 underfoot, only a cm diff than the msp's there. i mean, they're not gonna be great, but you'll def be able to use them and be fine with it if they're pretty long. it'd be easier with somethin fatter, but if u don't plan on skiin that much pow then go for it. i'd rather jib on fat skis than use park skis in powder, but that's just me
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