This guy will carve anything, I see it every week And it is a spectacle. If he can ride 15cm board with MP29 then most can. But again, it all comes down to the preference.
@b.freewas the one who convinced me to try narrower board and now I am all into skinny board. My board varies: 14.5, 15.5, 16, 18 but I ride 15.5 and 16 95% of the time.
If you asked me 2 years ago, 20cm was the minimum I would have gone but now I am not going back more than 18cm.
now riding the narrow board exclusively and I love it so … yes it is worth a try! For me, 15-16cm is the sweet spot. I modified my front boots as well on my MS boots: B shell at Mondo 26
p.s. If you are ever in CO, you can always try my narrow boards that is not in use