Ok, Yes. The mother ship was THE SHIT. From a marketing standpoint it was a pow twin, and not dedicated to park as much as the PE. But k2 was also a major company embracing the new freestyle movement, and putting their well known brand name in the lesser known world of freeskiing, bringing it closer to the mainstream. I feel like they put a lot of effort towards this new shift in skiing.
And they were making it before other companies were really making sick new park skis. Salomon refused to add to the 1080 for several years if I remember correctly.
You can't deny that the bullet rivots were a good idea that have been used by other comanies with great results. K2 is still using them, and they are working. I know they stemmed from the tendency of enemys to delaminate, but they put a very solid construction (capped, triaxial?) into a bombproof, almost delam-proof ski.
As far as the hellbent and the EP pro, they are both very sick skis, but the EP only comes in one size, and they are actually very different. The EP is way more flexy. . . as you probably know. But The EP cannot take some of the hits that the bent can, and is literally a noodle. But the EP does have those butter edges on the tip and tail to prevent catching, which is pretty cool. It seems to me that the EP was more made for playing around, buttering in pow and whatnot, and the bent is more focused towards charging.
And Line is a pretty revolutionary company. But they are a twin tip company from the ground up. k2 also dabbles in racing and old people. I am just proposing that it was cool for such a mainstream company to devote so much into the freeskiing industry. And they have done so with success, and good products.
And if you could clarify Line's dominance in sidecut and camber before k2, please explain yout thoughts.