Mwax is rub on but don't waste your time with it, if you go to Walmart and buy the little swayed cubes of wax they work just as well, are a quarter of the price, and leave your skis smelling nice haha, also I've had msnow on my set up for 2 yrs now, it's fast, but hurts like heck to fall on, also would not reccomend using it for a landing, get an old carpet or something and when building your set up msnow is crazy expensive for what it is, so would reccomend using the whole "ladder" style of drop in with spaces in between the msnow, because it saves msnow and provides built in steps, and one last thing, I would not reccomend using ski blades on m snow, if you lean back and fall get ready, because you will be covered in brush burns
Overall I'm pretty happy with my msnow, I've had it for 2 years and it's held up great (I have the normal orange m snow)