Those tires would probably be fine with just a good whack to clean them off, avoiding the water altogether.  I use M/T drag radials on my street car.  I pull around the water, give it a big rev and drop the clutch.  Tires spin a couple rounds, then bite.  I go straight to the line.  I don't have a line lock on that car, and Byron is pretty level at the line, so the car doesn't roll once I stage.  Just my two cents.