Skiing tends to be easier to pick up on initially. There's no set transfer rate, it's just about how big of balls you have, how willing you are to fall, how athletic you are, how often you ski, where you ski, and in what conditions.
If you're scared, go to church.
I don't call it "skiing" anymore. I call it "training for the Olympics".
I snowboarded for 7 years amd switched two years ago. I ski'd when I was alot younger. I can now ski very good and will really focus on tricks this season as I have just about as much confidence as I had when I was boarding.
At the beginning of last season something just clicked and pow skiing became way more comfortable for me, this was after about 1.5 seasons of skiing. Assuming you ride 30+ times a year, you will have the ability to comfortably ride pow within a couple seasons.