Replying to Ski hill spring Problems

So, this happens every year at my local hill Around the same time every year, the problem is speed while going down the hill, somehow grease gets stuck on the bottom of peoples skis and it is literally almost impossible to go down the hill, Basically you have to put up a giant work out to let alone, get down the hill, we have a degreaser spray in the shop, but that works for only 3-4 runs, does anyone else go through this? Or have any tricks to stop the grease for a decent amount of time?