I don't trust the mass air sensor to accurately measure the incoming air flow. I've datalogged it many times and it varies greatly depending on what kinda voltage the sensor is getting.
I have ran both and had no problems with the dry kit. You that to watch for intake puddling with the wet kit though. thats about the only thing. and make sure its tuned right . take it to someone with a dyno don't just buy a chip for it through the mail.