I think you already know the answers.So if going for only two, which ones? East.
Thinking old snow coldest and warmest?
After having some actual real snow recently, you do notice how much more friction there is.
I doubt it if you use the hardest one (OS 1). Just work with those Old Snows, and let us know what you think.I have OS1, OS2 and OS3. I don't know enough about wax and performance to decide if I should also get the NS range. I'm not racing and am only looking for a smooth gliding ski. Am I going to see sticky skis if I use OS in new snow?
Sure it would work, but I suggest just using the proper paste for conditions, and be sure to cover the whole base, and leave no voids at the edges.