The BSR can be awkward for me,too, but gotta admit my stitches look more even and consistent when I use it, so I keep at it. I even wish I could use it with rulers. I have settled on mode 1 and the start/stop button most of the time, so I don’t have to coordinate the foot action at the same time. But I think this is different for different people, as there are pros/cons to each way.
But if your stitches look better without it, then maybe be happy and proud of that and let go of trying to force it. There are plenty of quilters who feel more comfortable without it. And your 770 is awesome with or without it.