if the base looks like glass you re well on the way... i use a combo of brushes... finishing with a toko roller... or a horse hair hand brush if the battery on the drill is dead... if you want to fly you need to spend the time working the base... i find that quality wax also helps alot - i like swix... i ve ridden unscraped wax before... there is a local guy, papa woody that makes a tahoe blend wax... he actually recommends non scrape for the general (non competition) rider... it works well... you just lay it on real real light and drag the iron tip to tail for a finish... i find the first few runs you can notice the drag somewhat but after that she goes real well...
i should add this disclaimer... this is all for a freeride skidder :) alpine virgin (but i m coming over to the darkside)
cheers