I have a Huey Pro and I don't use it. They sent it for review, I attempted to make it do something useful but it simply doesn't, the intention was to use it for my laptop Mac but we did try the 20 inch cinema display.
I simply don't bother to calibrate anything using hardware, I have been testing this stuff for 20 years and Shirley has an MSc in the field (colour science). Basically, the difference between any two given hardware calibration kits (eyeOne, ColorMunki, Spyder Pro, whatever you like) is often greater than the difference between any two uncalibrated Mac monitors of similar type, and on the whole using the Mac's simple visual step by step calibration process (always aiming for Native Gamma and Native Whitepoint for the final profile, so you lose no dynamic range in the monitor itself) is more consistent and accurate.
When you get three or four of these calibrators to test and realise they all produce completely different profiles and adjustments, you also realise they are either all a waste of time, or all but one must be
The Huey is not that one.
The default colour for the NEX is by no means bad and if you want to tweak it, save a preset like the one you have. I have a bunch of different presets for various cameras, none of them measured, all done by eye to produce what I personally want to see. Since that is all that matters in photography unless you are copying paintings, and the colours of the real world far exceed whatever we can reproduce, my answer is stop worrying about why or whether something works - if you find a solution which works for you, and can revert to facrtory defaults at any time when you need to, just go with your own tastes.