I have the same issue..ive literally thrown my board on the snow at a flat area near a lift line at the start of a day to strap in and had it start slide away where i had to reach down and grab the binding before it got away...i was like wow i may just die this shits so slippery...
While the initial wax takes quite a bit, i found that i actually use less wax on subsequent waxes because the mid section holds up so well i really only have to wax the edges and then put a few drops down the center and spread them out on my SL-R
For those that havent seen it yet what makes their wax so special.
YouTube - We Have It They Don't (All Temperature Ski Wax)
I'd love to try the White gold some day when i get more advanced, but that shits just soooo expensive i dont think ever will.