I'm probably the most senior snowflake user in all of crg, without too much bragging.
I recommend you Arjay's build, but without the IF. Go for a lvl 31 21/18 build, and get between 115-120+ throwing wpf.
Since you won't have too much wpf left, I suggest you find a fast backup weapon. (Either 1h or 2h/pole)
Also, one of the advantages of throwing is that you can combine ammo for different uses. I do this by carrying 3 jarids for mainly anti-cav duties and use my snowflakes to harass xbowers, take down light/wounded horses, interrupt fights, headshot archers, you name it!
Try to go for the headshot with them btw, and remember there is a large random factor involved, that you can offset by throwing many of them quickly. With 120 wpf and 6pt they are fast and deadly accurate, but takes some skill to use.
