I'm new with this but wondering if there's any downside to going into NAZA mode as long as I leave the S1 & S2 switches in their upright positions? Is that the same thing as using the Vision mode? It seems like it would be useful (and helpful) to use the Home or Course lock sometimes with the flick of a switch... so I'm tempted to go into NAZA mode to have that option. But does it offer any other disadvantage or advantage? Why is it considered another "mode" as opposed to have just a check box for allowing the IOC (home / course lock)? Is NAZA a different computer chip than the Vision mode? If so, is it faster or better in anyway? Just trying to understand... thanks for any feedback.