Replying to How long does it take edges to naturally detune?

So I didn't start skiing park until a full season of use on my previous skis, so the edges were naturally detuned and never caught an edge on rails. I just got some new fr's and i'm going skiing tomorrow and want to know whether i should ski groomers, moguls, and jumps for the first couple of days or just detune them. The problem is I face a lot of ice so i like to have an edge and i've never detuned before, so how should i go about it? If i hit rails on my first day out would i definitely eat it?