zachTI'm asking if 90mm will be noticeably easier to ride in the park than 100mm
depends on the ski I think. I rode blends for a lot of the winter and they were fun and not to difficult to ski, they may have had extra swing weight due to being 185. My 88mm afterbangs were thinner but overall heavier, so on rails they were just as weighty to swing around but not as fun to surface swap as the blends.
I also have a beater pair of line skogens tho (76mm) which are genuinely fun skis. In addition to being narrow they were also light as hell which made them real fun to ski on. I learned most of my new tricks on those then transferred them to the blends.
tl;dr narrow skis make difference unless they are light too