Replying to New skis edges catchin on da rails

title says it all. My k2 fugative snapped in half n i got like 06 scrathes as replacements brand new and there very akward.... like really different on rails. but anyway my fujatives were like 2 years old and there edges were like flat to the point it was hard to ski on them and turn lol. So i usually ski alot of rails and now when im hitting most rails my right inside edges stick and when hittin boxes i slice little shavings off the plastic part inside the copeing and it makes a weird noise. So i have tried to file down the edges with a file and in like a half hour got little results and my edges still catch. the big prob here is i have a railjam friday and i want to not catch my edges. So is there anything special you kids do to file down those edges with a file or do you use something else? Im also worried about damaging my brand new 200 dolla skis so is there and special ''safe" way not to hurt my babies?