I use a Spin Doctor 1/4" drive on my CF bike and some small projects. I use a 1/2" drive bar type on my vehicles...lately I've used it for high torques values (80-120lbs) rather than low while doing suspension work...an eye opener wrt amount of force it actually is even after doing mechanical work for years.

I'm of the opinion a torque wrench is a good idea on CF to avoid pulling out/cracking the anchor points, and certainly a good idea where softer metals may be involved. Opinions vary...do what makes you comfortable.