tubless,
I don't think many folks dump their water right away, some do a dump and refill maybe 1-2 months in because they may have messed up their water chemistry in the first attempts at managing it.
To get some good real world tips you might post the directions you have and folks can give you some feedback. Be prepared for some conflicting information though, there are plenty of ways to achieve the same result, not that either is right or wrong.
I actually used a little bit of info from the start up kit directions, directions from the dealer and from forums like this to decide on my first startup procedure.
One guiding principle for all of this is use what you need, nothing more. Keeping it simple is key, so you don't over manage your water.
Steve