I am retarded Options

[KOU In3]

I am retarded:

Or rather my timing is (well probably both). OK, instructions on the Zex Nitrous kit reccomend retarding the timing by two degrees. What I'm wondering is, since the ECU has the ability to pull timing all by itself, shouldn't it automaticly retard as necessary all on its own? Also, am I going to be running around with my timing pulled 99% of the time realizing poorer performance just for the rare time that I'm on the juice?

Mainly wondering for arguements sake here. Figuring it's probably best to play it safe and follow the instructions to the letter here, especially at first. So if they say 'turn around 3 times in place before entering the vehicle' I probably would. Still, I do kind of wonder...