i roll into the box, 1 quick rev to turn the tires, roll out a full car length (you'd be surprised how much water you push). then it's a pump of the brakes and up to 7k in first click 2nd and around 6500 until i get a decent puff of smoke. Roll forward, cut a 1.355 60' and be happy...
also, depending on the water box and how large it is, if there is enough water i'll just roll through as it covers the entire slick without slinging water up into the wheel well...

good luck man!