Originally Posted by
Doug Fattic
how do you insure your whole frame is still in alignment when you are finished?
With a string and a metric ruler.
do you care that your derailleur is aligned in the dropout hanger so it shifts properly?
Uh, yeah.
if you dropouts are not exactly parallel to each other...
Why wouldn't they be? You can make a simple tool with a threaded bolt, some nuts and washers.
Some make this out to be like it's some huge project. They say the same about building up a simple wheel. It's not rocket science.