+1 for go ride it if everything seems tensioned and set proper. I have a rear wheel with a hop that's noticable, but everything else on the build is good, and I've put 400+ Miles on it. Every time I get paranoid and toss it on the truing stand it's still as good as the day it was built. Even on a brand new rim you can't necessarily expect no hop if your tension is perfect.

*Ponders if anyone's ever done Radius measurements at multiple points on various brands of rims to check quality.*