Never found bass colouration to be a problem. Like any good nearfields, it`s takes your ears a good few months to "learn" them.
And having a good knowledge about soundsystems and how sound works at high volume is handy etc. Always test your tracks on a rig is the simple answer.
Absolute 2`s became the industry standard replacement for ns10`s in a good proportion of studio`s, and becuase I do more work than just techno, I wanted to be on some kind of level with the places I go.
If you are looking purely at dance music production, there are quite a few monitors that do the job however.