That didn't work too well for me, since I'd hyperfocus on one thing (my heading, rate of turn, altitude, etc) and develop blindspots to the other 5 instruments. Not to mention radios and checklists and visuals and maps, etc.

And god forbid I had to use my flight computer (the rotary slide-rule type, ipads didn't exist then). That thing was pure crack to my brain.

Instrument flying is when these weaknesses became most apparent to me. VFR was enough like driving a car that it wasn't as much of an issue.