Vol. Control, TKD Or Dact For Counterpoint Pre ?

Thanks all. I guess one of the tricks is figuring the right taper. One of my fellow philes has a Quicksilver preamp that has dual mono 40-something position detented volume controls, making it very easy to have fine gradations between steps.

Does anyone know how either this one

http://digitalanaloguediy.com/attenuator.html

or the ones built up with either Holco or Vishays on a Shallco or Elma stepped rotary switch compare?

Or does the quality of the switch itself not come into much play?