Surf the Rockies!Like powder, slush takes some time to learn to ski, but most people don't get that many chances. It will also kick your ass in a hurry if you make a mistake and is not as forgiving as powder, so it is even more important to keep your skis together. When it gets deep and heavy you need to stay low and push both skis into the snow. Slush favors the heavier skier.
Living in the southwest I get to enjoy a long season of "spring" skiing when the snow melts and refreezes every day, so I get lots of practice. We laugh at the spring tourists who go out first thing in the morning and ski "frozen doorknobs" for three hours and then leave the mountain just when it is starting to get good around noon or 1:00 and miss the great "corn snow." Many skiers end their season right when the slush season starts in the Spring. The only danger is that once the hill starts its melt freeze cycle you may get a cold snap without snow, and then you have an ugly icey knobby monster until it snows or warms again. That happened to me once at Jackson Hole when I arrived the day after a two week sunny streach.
It also takes some thinking to hit the good stuff because different aspects of the mountain soften up at different times. In late March or April at a place like Snowbird you can spend almost the entire day skiing ice or soft slush depending on how you follow the sun. Watch where the locals are skiing. The high altitude sun works fast, so timing is everything.
In the backcountry some people actually prefer slush to powder. You can walk up the frozen north slope with skis on your back and then ski the sweet corn on the sunny south side. There is nothing like skiing the super steeps when it is perfectly hard and smooth with just the top 3 inches lightly toasted to velvety softness.
Try a little surfing this year and you just may find that it becomes one of your favorite conditions.