Sh4dowLine Chronics are amazing skis. I haven't skied the other two so I can't comment on them. That said, the Chronics are park skis. If you want something good for off piste you want something much wider.
IamIBAMJ skis are quality stuff, you will not be disappointed. Spend your money in the right place, keep it in the industry, and get an insanely good ski that smashes anything that Line and Armada put out, not to discredit either.
tomPietrowskiHas anyone here actually skied the 98mm jski? I'm really interested to know how they ride.
As for the others I have not skied the chronic an I'm not a big fan of the alpha. I don't really get park skis with loads of rocker. Sure it can make surface swaps easier but you loose so much stability. I like a full camber park ski with just a little early rise. But that's me.
tomPietrowski^what ski would you compare them too flex wise? Do they hold an edge can you actually carve hard on them or are they just to soft?
ArseneFoxnever heard of J ski's are they a new brand?
nutz.Here's Bishop's review of them if that helps https://www.newschoolers.com/reviews/2767/New-Schoolers