Flat Camber Skis

My little brother rides the kid's mantra, which are totally flat. I rode domains for a while, they were awesome in the park, but squirrely and weird outside of it, but then again i like riding full rocker skis

Compared to a cambered ski, a flat ski the same flex will probably not hold an edge as good. A flat ski that is stiffer probably will. Volkl makes a lot of flat underfoot and full rocker skis and they're all relatively stiff.

domains were one of my first park skis. once I got on a real ski I realized how sketchy they were for anything other than straightlining from park feature to park feature. Not saying theres anything wrong with flat cambered skis, but I wouldn't get domains unless all you want to do is slow straight park riding

I ride icelantic gypsys (rocker/flat/rocker) as my beater and crappy powder skis and really like the profile. IMO, it makes the skis feel hella surfy and buttery all the time and I prefer them for tricks and spins. I ride cambered park skis as my park/all mtns because I like going Mach 10 and not chattering out the ass.

Tl;dr - if you're looking for lazy park laps and purely doing tricks go for flat underfoot. If you actually care about being able to turn at higher speeds then go with cambered