Replying to Ski Repair question

Alright... on my rail skis... '03 skogens there are obviously a ton of cracked edges, but thankfully no blown out edges yet, but anyway...
Underneath both my boots, on both sides, my top skin is coming off away from the edge, and i can see the core of my ski...it is getting bad enough where it is really sticking out, and my edges are begin held down by nothing? is this normal and i just haven't seen it yet, i work at a shop so i have tried epoxying it and then ptexing over the epoxy, but just seeing if anyone else knew what to do about this.
Thanks