This is literally the ONLY complaint I have with my 12/13 Antidogmas. I wish you guys would make a 18~ length. It would be perfect.
For anyone thinking about Antidogmas or Amplid in general, stop hesitating and pick up a pair of their skis. I had an older pair of Antidogmas that kind of just fell apart...like right now they're missing more edge than they have. I got a pair of ON3P's, and then when those broke, thought about getting another pair of Antidogmas since I liked them so much. They're super playful, stiff yet still able to butter all over the place. They hold up on jumps like a champ...they're awesome. I was a bit skeptical ordering them, though for fear of them falling apart again. I don't know what they did, but Amplid definitely fixed whatever was up with it. I beat my skis up, and with about 40~ days on this pair so far, they've only got a few small edge cracks and some topsheet chips.
And they're incredibly light.
Buy Amplid.