I got to test the Hellbents. I loved the pow performance, they seemed to have unlimited floatation even at very slow speeds. What surprised me was how good they were on groomers. I thought that skiing them on hard snow would be a real struggle but it wasn't at all. Also park jibbing is quite fun on the Hellbents.
When testing them I fell in love with the skis and decided to buy them, but there was a problem: there were no Hellbents left in Finland. I would have had to order from the UK. There was one pair of Line EP Pros left though...
I knew that Pollard designs amazing skis (I have Elizabeths) so I decided to go with the EP's. Yes, without testing. Best decision ever. In pow they are just as fun as Hellbents, the same floatation and surfy feeling are both there. On hardpack the EP Pro is a winner though. I love the 16 m sidecut (Hellbent is 22 m if I recall correctly), makes carving really fun. They are fun for park also. My friend tried them and started immediately throwing down the hardest tricks he could do (actually he bought EP's too a bit later). These excel in soft snow and on soft spring groomers! Skiing the sluffy spring snow is tons of fun.
Hellbents and EP Pros are both great skis, but I would go with EP's.