I used to use secondary bevels for everything, now, for some things I still do, and for some things I can’s because the plane blade is wider than the diamond plates I use (so I have to sharpen those freehand (or spend a large amount of money on new diamonds, that I would prefer to spend on other things)). I have found that a well loaded strop within arms reach is the most useful.
To be honest, I found secondary bevels only really of use if you had a good honing guide and a decent fixture to set them up with, and have trouble with, fear of, or no experience of freehand sharpening.