This question is one of the last objections a ski buyer tosses into the flow of the sale just as the salesperson has guided it to the brink of consummation. To keep the impending close on course, the suave salesperson will hedge the issue with some bland reassurance without raising the obvious retort, that no ski can overcome all the many and curious ills that plague the untalented mogul skier.
A great skier can manage bumps no matter what ski he or she is on. That doesn’t mean experts don’t have favorite skis for this spine-rattling condition, but they don’t need to change skis just because they encounter a bump field. They’ll manage, and chances are anyone watching them won’t be able to tell if the ski is helping, hurting or just along for the ride.
To get the subject out of the way, there are such things as mogul skis, but they’re made for competitors, not your everyday, all-terrain skier. Their tiny (61mm-66mm) waists and svelte sidecuts were common 25 years ago, but they’re as rare as bacon at a bar mitzvah today. Unless you’re planning to compete, there’s no reason for you to fish in this pond.