Hey RacerX: The ergo-cant adjustment has 3 settings designed to adjust to the kind of stance you have. Try to picture this. Bow-legged people in ski boots have trouble getting the sole of the boot flat on the floor, think ski on snow. The ergo-cant set at 1 is for the least 'bow-legged' folks. Real cowboys need the setting at 3. To test what you may need, set the ergo-cant at 1 and put both boots on and stand in a normal stance, and have someone take a look see if the boot sole/plate is flat on the floor, and sense for yourself how it feels. Do you feel like your are straining in the knees, lower legs to make the boots flat. Change the setting to 3 and try this again. How does it feel and is the boot easier to get flat on the floor or harder? It is best to adjust the cant while the boot is on, you should feel the difference immediately.
The active on and off. Since you ski on the CYB-X boot you must be fairly decent skiier so you should have active on. This will allow best performance from the boot particularly on great turning side cut skis, on different terrain, different snow... Michigan crud, Sunshine powder. The active allows for the different 'foward leaning/positioning techniques good skiers use to keep dry and out of the trees. Hope this helps.