"It's VERY easy to tighten it too much and collapse a tube. You might also consider taking it off and putting a few wraps of tape around the stays to protect them--if you nick that aluminum, you'll create a stress riser that may fail eventually."
this is over-reacting. this frame is not an uber-light thinwalled racing frame. the tubing is straight gauge, and is quite robust. this frame will last longer than most would ride it.
to the OP, enjoy your bike. ride it. you have already began to conquor the art of bicycle matainence. may i suggest getting a good book on the subject, such as "zinn and the art of mountain bike matainence". if not, become very framiliar with sheldon brown's website. I learned 70% of what i know from those two sources. the other 30% was by my learning as a kid.