When I added the GPS 175 to my airplane I spent a lot time getting familiar with the features I intended to use and how those features interacted with my G3X Touch system. Each system was well documented but, in my opinion, the documentation on how the two systems interacted was inadequate.
I wrote nothing in my pilot log book but I did write an AFM supplement, illustrated with screen captures, that documented much of what I had learned. There are several CAUTION notes to remind me, and any future owner, of the traps I had found.