Try to go around the water box if possible and I never did a burnout on the pirelli tires. If you have to go through the water box do a small burnout just to get most of the water off.
I've found each tune to be different as far as launch rpm goes. I'd say start at 1500, and if you spin it means you likely flashed the converter while still braking. Going off of idle to see a baseline number wouldn't be a bad idea either.