The RainX was fine for 6 runs at the end of the day.
It was 3:30 when the guy saw me struggling with wax outside the summit lodge. I had stopped because skiing had become unbearable, and it was either get some slide on my sticks, or give up for the day.
I've since scraped, cleaned, structured and re-waxed the skis, but I'm taking the RainX with me tomorrow, just in case I need it.
If I need it I'll apply it with the fiber pad from a Zardoz hockey puck, since I won't be buying any more Zardoz fluid; I like it, but it's much too expensive.