I think Nathan Schultz (who posts here) used to ski for Fischer. May
still.

For a general ski, go with the plus base. My guess also would be to
pick a stiffer ski - a soft ski will drag in hard conditions, but with
a stiff ski in soft snow you can just slap more wax on (lengthen wax
pocket).

I don't know what 182cm/92kg translates to (i.e. I'm too lazy to figure
it out) but I think that you're not a small person, like me - I am 6'
195lbs and ski a 210/207 plus stiff.

bt